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Finding the Fourth Proportional to 658,418.98, 908,692.05 and 371,957.52

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Solution

The fourth proportional to 658,418.98, 908,692.05 and 371,957.52 is: 513,343.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,418.98 : 908,692.05 = 371,957.52 : x
  2. Step 2: Convert to fraction form
    658,418.98/908,692.05 = 371,957.52/x
  3. Step 3: Cross multiply
    658,418.98x = 908,692.05 × 371,957.52
  4. Step 4: Simplify right side
    658,418.98x = 337,994,841,361.72
  5. Step 5: Solve for x
    x = 337,994,841,361.72/658,418.98
  6. Step 6: Final answer
    x = 513,343.10

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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.