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Finding the Fourth Proportional to 708,125.53, 977,200.89 and 385,838.29

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Solution

The fourth proportional to 708,125.53, 977,200.89 and 385,838.29 is: 532,450.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,125.53 : 977,200.89 = 385,838.29 : x
  2. Step 2: Convert to fraction form
    708,125.53/977,200.89 = 385,838.29/x
  3. Step 3: Cross multiply
    708,125.53x = 977,200.89 × 385,838.29
  4. Step 4: Simplify right side
    708,125.53x = 377,041,520,384.08
  5. Step 5: Solve for x
    x = 377,041,520,384.08/708,125.53
  6. Step 6: Final answer
    x = 532,450.12

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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.