Home / 497,983.12-747,127.76-445,057.72

Finding the Fourth Proportional to 497,983.12, 747,127.76 and 445,057.72

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Solution

The fourth proportional to 497,983.12, 747,127.76 and 445,057.72 is: 667,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,983.12 : 747,127.76 = 445,057.72 : x
  2. Step 2: Convert to fraction form
    497,983.12/747,127.76 = 445,057.72/x
  3. Step 3: Cross multiply
    497,983.12x = 747,127.76 × 445,057.72
  4. Step 4: Simplify right side
    497,983.12x = 332,514,977,414.31
  5. Step 5: Solve for x
    x = 332,514,977,414.31/497,983.12
  6. Step 6: Final answer
    x = 667,723.39

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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.