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Finding the Fourth Proportional to 866,854.82, 1,300,539.81 and 417,445.76

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Solution

The fourth proportional to 866,854.82, 1,300,539.81 and 417,445.76 is: 626,292.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,854.82 : 1,300,539.81 = 417,445.76 : x
  2. Step 2: Convert to fraction form
    866,854.82/1,300,539.81 = 417,445.76/x
  3. Step 3: Cross multiply
    866,854.82x = 1,300,539.81 × 417,445.76
  4. Step 4: Simplify right side
    866,854.82x = 542,904,829,395.71
  5. Step 5: Solve for x
    x = 542,904,829,395.71/866,854.82
  6. Step 6: Final answer
    x = 626,292.68

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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.