Home / 866,685.29-1,298,963.15-486,807.47

Finding the Fourth Proportional to 866,685.29, 1,298,963.15 and 486,807.47

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Solution

The fourth proportional to 866,685.29, 1,298,963.15 and 486,807.47 is: 729,613.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,685.29 : 1,298,963.15 = 486,807.47 : x
  2. Step 2: Convert to fraction form
    866,685.29/1,298,963.15 = 486,807.47/x
  3. Step 3: Cross multiply
    866,685.29x = 1,298,963.15 × 486,807.47
  4. Step 4: Simplify right side
    866,685.29x = 632,344,962,442.52
  5. Step 5: Solve for x
    x = 632,344,962,442.52/866,685.29
  6. Step 6: Final answer
    x = 729,613.13

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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.