Home / 1,008,134.30-1,512,201.45-343,286.30

Finding the Fourth Proportional to 1,008,134.30, 1,512,201.45 and 343,286.30

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Solution

The fourth proportional to 1,008,134.30, 1,512,201.45 and 343,286.30 is: 514,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,134.30 : 1,512,201.45 = 343,286.30 : x
  2. Step 2: Convert to fraction form
    1,008,134.30/1,512,201.45 = 343,286.30/x
  3. Step 3: Cross multiply
    1,008,134.30x = 1,512,201.45 × 343,286.30
  4. Step 4: Simplify right side
    1,008,134.30x = 519,118,040,625.14
  5. Step 5: Solve for x
    x = 519,118,040,625.14/1,008,134.30
  6. Step 6: Final answer
    x = 514,929.45

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Half scale
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Double scale
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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.