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Finding the Fourth Proportional to 630,247.52, 869,753.32 and 343,777.88

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Solution

The fourth proportional to 630,247.52, 869,753.32 and 343,777.88 is: 474,419.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,247.52 : 869,753.32 = 343,777.88 : x
  2. Step 2: Convert to fraction form
    630,247.52/869,753.32 = 343,777.88/x
  3. Step 3: Cross multiply
    630,247.52x = 869,753.32 × 343,777.88
  4. Step 4: Simplify right side
    630,247.52x = 299,001,952,472.56
  5. Step 5: Solve for x
    x = 299,001,952,472.56/630,247.52
  6. Step 6: Final answer
    x = 474,419.88

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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.