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Finding the Fourth Proportional to 512,452.92, 707,186.22 and 283,006.02

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Solution

The fourth proportional to 512,452.92, 707,186.22 and 283,006.02 is: 390,548.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,452.92 : 707,186.22 = 283,006.02 : x
  2. Step 2: Convert to fraction form
    512,452.92/707,186.22 = 283,006.02/x
  3. Step 3: Cross multiply
    512,452.92x = 707,186.22 × 283,006.02
  4. Step 4: Simplify right side
    512,452.92x = 200,137,957,521.04
  5. Step 5: Solve for x
    x = 200,137,957,521.04/512,452.92
  6. Step 6: Final answer
    x = 390,548.97

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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.