Home / 572,691.12-790,314.36-318,042.80

Finding the Fourth Proportional to 572,691.12, 790,314.36 and 318,042.80

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Solution

The fourth proportional to 572,691.12, 790,314.36 and 318,042.80 is: 438,899.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,691.12 : 790,314.36 = 318,042.80 : x
  2. Step 2: Convert to fraction form
    572,691.12/790,314.36 = 318,042.80/x
  3. Step 3: Cross multiply
    572,691.12x = 790,314.36 × 318,042.80
  4. Step 4: Simplify right side
    572,691.12x = 251,353,791,934.61
  5. Step 5: Solve for x
    x = 251,353,791,934.61/572,691.12
  6. Step 6: Final answer
    x = 438,899.41

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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.