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Finding the Fourth Proportional to 680,863.60, 1,019,545.80 and 502,404.40

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Solution

The fourth proportional to 680,863.60, 1,019,545.80 and 502,404.40 is: 752,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,863.60 : 1,019,545.80 = 502,404.40 : x
  2. Step 2: Convert to fraction form
    680,863.60/1,019,545.80 = 502,404.40/x
  3. Step 3: Cross multiply
    680,863.60x = 1,019,545.80 × 502,404.40
  4. Step 4: Simplify right side
    680,863.60x = 512,224,295,921.52
  5. Step 5: Solve for x
    x = 512,224,295,921.52/680,863.60
  6. Step 6: Final answer
    x = 752,315.58

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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.