Home / 1,008,086.10-1,512,129.15-260,132.10

Finding the Fourth Proportional to 1,008,086.10, 1,512,129.15 and 260,132.10

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Solution

The fourth proportional to 1,008,086.10, 1,512,129.15 and 260,132.10 is: 390,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,086.10 : 1,512,129.15 = 260,132.10 : x
  2. Step 2: Convert to fraction form
    1,008,086.10/1,512,129.15 = 260,132.10/x
  3. Step 3: Cross multiply
    1,008,086.10x = 1,512,129.15 × 260,132.10
  4. Step 4: Simplify right side
    1,008,086.10x = 393,353,331,260.72
  5. Step 5: Solve for x
    x = 393,353,331,260.72/1,008,086.10
  6. Step 6: Final answer
    x = 390,198.15

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Half scale
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Double scale
Find fourth proportional to 1,008,087.10, 1,512,130.65 and 260,133.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.