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Finding the Fourth Proportional to 627,675.52, 866,223.84 and 385,971.52

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Solution

The fourth proportional to 627,675.52, 866,223.84 and 385,971.52 is: 532,660.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,675.52 : 866,223.84 = 385,971.52 : x
  2. Step 2: Convert to fraction form
    627,675.52/866,223.84 = 385,971.52/x
  3. Step 3: Cross multiply
    627,675.52x = 866,223.84 × 385,971.52
  4. Step 4: Simplify right side
    627,675.52x = 334,337,732,185.04
  5. Step 5: Solve for x
    x = 334,337,732,185.04/627,675.52
  6. Step 6: Final answer
    x = 532,660.14

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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.