Home / 377,559.28-521,020.92-207,789.76

Finding the Fourth Proportional to 377,559.28, 521,020.92 and 207,789.76

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Solution

The fourth proportional to 377,559.28, 521,020.92 and 207,789.76 is: 286,743.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,559.28 : 521,020.92 = 207,789.76 : x
  2. Step 2: Convert to fraction form
    377,559.28/521,020.92 = 207,789.76/x
  3. Step 3: Cross multiply
    377,559.28x = 521,020.92 × 207,789.76
  4. Step 4: Simplify right side
    377,559.28x = 108,262,811,921.78
  5. Step 5: Solve for x
    x = 108,262,811,921.78/377,559.28
  6. Step 6: Final answer
    x = 286,743.88

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1.5x scale

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.