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Finding the Fourth Proportional to 518,901.28, 716,082.59 and 292,545.16

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Solution

The fourth proportional to 518,901.28, 716,082.59 and 292,545.16 is: 403,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,901.28 : 716,082.59 = 292,545.16 : x
  2. Step 2: Convert to fraction form
    518,901.28/716,082.59 = 292,545.16/x
  3. Step 3: Cross multiply
    518,901.28x = 716,082.59 × 292,545.16
  4. Step 4: Simplify right side
    518,901.28x = 209,486,494,402.04
  5. Step 5: Solve for x
    x = 209,486,494,402.04/518,901.28
  6. Step 6: Final answer
    x = 403,711.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.