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Finding the Fourth Proportional to 627,156.74, 865,373.70 and 369,251

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Solution

The fourth proportional to 627,156.74, 865,373.70 and 369,251 is: 509,505.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,156.74 : 865,373.70 = 369,251 : x
  2. Step 2: Convert to fraction form
    627,156.74/865,373.70 = 369,251/x
  3. Step 3: Cross multiply
    627,156.74x = 865,373.70 × 369,251
  4. Step 4: Simplify right side
    627,156.74x = 319,540,104,098.70
  5. Step 5: Solve for x
    x = 319,540,104,098.70/627,156.74
  6. Step 6: Final answer
    x = 509,505.97

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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.