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Finding the Fourth Proportional to 627,618.86, 866,092.83 and 359,295.02

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Solution

The fourth proportional to 627,618.86, 866,092.83 and 359,295.02 is: 495,814.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,618.86 : 866,092.83 = 359,295.02 : x
  2. Step 2: Convert to fraction form
    627,618.86/866,092.83 = 359,295.02/x
  3. Step 3: Cross multiply
    627,618.86x = 866,092.83 × 359,295.02
  4. Step 4: Simplify right side
    627,618.86x = 311,182,840,676.71
  5. Step 5: Solve for x
    x = 311,182,840,676.71/627,618.86
  6. Step 6: Final answer
    x = 495,814.99

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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.