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Finding the Fourth Proportional to 696,520.98, 960,791.72 and 437,988.78

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Solution

The fourth proportional to 696,520.98, 960,791.72 and 437,988.78 is: 604,168.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,520.98 : 960,791.72 = 437,988.78 : x
  2. Step 2: Convert to fraction form
    696,520.98/960,791.72 = 437,988.78/x
  3. Step 3: Cross multiply
    696,520.98x = 960,791.72 × 437,988.78
  4. Step 4: Simplify right side
    696,520.98x = 420,815,991,086.96
  5. Step 5: Solve for x
    x = 420,815,991,086.96/696,520.98
  6. Step 6: Final answer
    x = 604,168.44

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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.