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Finding the Fourth Proportional to 627,264, 865,607.47 and 369,156.13

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Solution

The fourth proportional to 627,264, 865,607.47 and 369,156.13 is: 509,425.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,264 : 865,607.47 = 369,156.13 : x
  2. Step 2: Convert to fraction form
    627,264/865,607.47 = 369,156.13/x
  3. Step 3: Cross multiply
    627,264x = 865,607.47 × 369,156.13
  4. Step 4: Simplify right side
    627,264x = 319,544,305,888.31
  5. Step 5: Solve for x
    x = 319,544,305,888.31/627,264
  6. Step 6: Final answer
    x = 509,425.55

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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.