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Finding the Fourth Proportional to 627,963.92, 866,612.96 and 359,743.76

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Solution

The fourth proportional to 627,963.92, 866,612.96 and 359,743.76 is: 496,459.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,963.92 : 866,612.96 = 359,743.76 : x
  2. Step 2: Convert to fraction form
    627,963.92/866,612.96 = 359,743.76/x
  3. Step 3: Cross multiply
    627,963.92x = 866,612.96 × 359,743.76
  4. Step 4: Simplify right side
    627,963.92x = 311,758,604,695.13
  5. Step 5: Solve for x
    x = 311,758,604,695.13/627,963.92
  6. Step 6: Final answer
    x = 496,459.42

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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.