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Finding the Fourth Proportional to 708,061.68, 977,136.32 and 385,771.68

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Solution

The fourth proportional to 708,061.68, 977,136.32 and 385,771.68 is: 532,371.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,061.68 : 977,136.32 = 385,771.68 : x
  2. Step 2: Convert to fraction form
    708,061.68/977,136.32 = 385,771.68/x
  3. Step 3: Cross multiply
    708,061.68x = 977,136.32 × 385,771.68
  4. Step 4: Simplify right side
    708,061.68x = 376,951,520,719.85
  5. Step 5: Solve for x
    x = 376,951,520,719.85/708,061.68
  6. Step 6: Final answer
    x = 532,371.02

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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.