Home / 396,521.28-594,782.73-278,719.74

Finding the Fourth Proportional to 396,521.28, 594,782.73 and 278,719.74

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Solution

The fourth proportional to 396,521.28, 594,782.73 and 278,719.74 is: 418,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,521.28 : 594,782.73 = 278,719.74 : x
  2. Step 2: Convert to fraction form
    396,521.28/594,782.73 = 278,719.74/x
  3. Step 3: Cross multiply
    396,521.28x = 594,782.73 × 278,719.74
  4. Step 4: Simplify right side
    396,521.28x = 165,777,687,862.09
  5. Step 5: Solve for x
    x = 165,777,687,862.09/396,521.28
  6. Step 6: Final answer
    x = 418,080.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.