Home / 572,789.26-790,428.13-318,156.85

Finding the Fourth Proportional to 572,789.26, 790,428.13 and 318,156.85

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Solution

The fourth proportional to 572,789.26, 790,428.13 and 318,156.85 is: 439,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,789.26 : 790,428.13 = 318,156.85 : x
  2. Step 2: Convert to fraction form
    572,789.26/790,428.13 = 318,156.85/x
  3. Step 3: Cross multiply
    572,789.26x = 790,428.13 × 318,156.85
  4. Step 4: Simplify right side
    572,789.26x = 251,480,123,992.19
  5. Step 5: Solve for x
    x = 251,480,123,992.19/572,789.26
  6. Step 6: Final answer
    x = 439,044.76

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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.