Home / 498,126.60-687,206.70-326,086.65

Finding the Fourth Proportional to 498,126.60, 687,206.70 and 326,086.65

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Solution

The fourth proportional to 498,126.60, 687,206.70 and 326,086.65 is: 449,863.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,126.60 : 687,206.70 = 326,086.65 : x
  2. Step 2: Convert to fraction form
    498,126.60/687,206.70 = 326,086.65/x
  3. Step 3: Cross multiply
    498,126.60x = 687,206.70 × 326,086.65
  4. Step 4: Simplify right side
    498,126.60x = 224,088,930,660.56
  5. Step 5: Solve for x
    x = 224,088,930,660.56/498,126.60
  6. Step 6: Final answer
    x = 449,863.41

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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.