Home / 572,719.05-790,306.20-331,017.28

Finding the Fourth Proportional to 572,719.05, 790,306.20 and 331,017.28

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Solution

The fourth proportional to 572,719.05, 790,306.20 and 331,017.28 is: 456,777.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,719.05 : 790,306.20 = 331,017.28 : x
  2. Step 2: Convert to fraction form
    572,719.05/790,306.20 = 331,017.28/x
  3. Step 3: Cross multiply
    572,719.05x = 790,306.20 × 331,017.28
  4. Step 4: Simplify right side
    572,719.05x = 261,605,008,691.14
  5. Step 5: Solve for x
    x = 261,605,008,691.14/572,719.05
  6. Step 6: Final answer
    x = 456,777.21

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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.