Home / 716,086.36-1,074,129.54-340,972.12

Finding the Fourth Proportional to 716,086.36, 1,074,129.54 and 340,972.12

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Solution

The fourth proportional to 716,086.36, 1,074,129.54 and 340,972.12 is: 511,458.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,086.36 : 1,074,129.54 = 340,972.12 : x
  2. Step 2: Convert to fraction form
    716,086.36/1,074,129.54 = 340,972.12/x
  3. Step 3: Cross multiply
    716,086.36x = 1,074,129.54 × 340,972.12
  4. Step 4: Simplify right side
    716,086.36x = 366,248,226,408.43
  5. Step 5: Solve for x
    x = 366,248,226,408.43/716,086.36
  6. Step 6: Final answer
    x = 511,458.18

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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.