Home / 559,693.22-772,397.28-318,016.76

Finding the Fourth Proportional to 559,693.22, 772,397.28 and 318,016.76

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Solution

The fourth proportional to 559,693.22, 772,397.28 and 318,016.76 is: 438,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,693.22 : 772,397.28 = 318,016.76 : x
  2. Step 2: Convert to fraction form
    559,693.22/772,397.28 = 318,016.76/x
  3. Step 3: Cross multiply
    559,693.22x = 772,397.28 × 318,016.76
  4. Step 4: Simplify right side
    559,693.22x = 245,635,276,556.43
  5. Step 5: Solve for x
    x = 245,635,276,556.43/559,693.22
  6. Step 6: Final answer
    x = 438,874.85

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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.