Home / 572,839.36-790,517.92-318,214.24

Finding the Fourth Proportional to 572,839.36, 790,517.92 and 318,214.24

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Solution

The fourth proportional to 572,839.36, 790,517.92 and 318,214.24 is: 439,135.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,839.36 : 790,517.92 = 318,214.24 : x
  2. Step 2: Convert to fraction form
    572,839.36/790,517.92 = 318,214.24/x
  3. Step 3: Cross multiply
    572,839.36x = 790,517.92 × 318,214.24
  4. Step 4: Simplify right side
    572,839.36x = 251,554,059,119.18
  5. Step 5: Solve for x
    x = 251,554,059,119.18/572,839.36
  6. Step 6: Final answer
    x = 439,135.43

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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.