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Finding the Fourth Proportional to 708,241.88, 977,372.28 and 385,951.20

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Solution

The fourth proportional to 708,241.88, 977,372.28 and 385,951.20 is: 532,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,241.88 : 977,372.28 = 385,951.20 : x
  2. Step 2: Convert to fraction form
    708,241.88/977,372.28 = 385,951.20/x
  3. Step 3: Cross multiply
    708,241.88x = 977,372.28 × 385,951.20
  4. Step 4: Simplify right side
    708,241.88x = 377,218,004,312.74
  5. Step 5: Solve for x
    x = 377,218,004,312.74/708,241.88
  6. Step 6: Final answer
    x = 532,611.83

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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.