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Finding the Fourth Proportional to 478,343.67, 717,516.41 and 449,114.42

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Solution

The fourth proportional to 478,343.67, 717,516.41 and 449,114.42 is: 673,672.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,343.67 : 717,516.41 = 449,114.42 : x
  2. Step 2: Convert to fraction form
    478,343.67/717,516.41 = 449,114.42/x
  3. Step 3: Cross multiply
    478,343.67x = 717,516.41 × 449,114.42
  4. Step 4: Simplify right side
    478,343.67x = 322,246,960,484.48
  5. Step 5: Solve for x
    x = 322,246,960,484.48/478,343.67
  6. Step 6: Final answer
    x = 673,672.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.