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Finding the Fourth Proportional to 627,157.74, 865,375.08 and 369,252

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Solution

The fourth proportional to 627,157.74, 865,375.08 and 369,252 is: 509,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,157.74 : 865,375.08 = 369,252 : x
  2. Step 2: Convert to fraction form
    627,157.74/865,375.08 = 369,252/x
  3. Step 3: Cross multiply
    627,157.74x = 865,375.08 × 369,252
  4. Step 4: Simplify right side
    627,157.74x = 319,541,479,040.16
  5. Step 5: Solve for x
    x = 319,541,479,040.16/627,157.74
  6. Step 6: Final answer
    x = 509,507.35

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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.