Home / 442,758.06-664,221.29-306,555.55

Finding the Fourth Proportional to 442,758.06, 664,221.29 and 306,555.55

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Solution

The fourth proportional to 442,758.06, 664,221.29 and 306,555.55 is: 459,891.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,758.06 : 664,221.29 = 306,555.55 : x
  2. Step 2: Convert to fraction form
    442,758.06/664,221.29 = 306,555.55/x
  3. Step 3: Cross multiply
    442,758.06x = 664,221.29 × 306,555.55
  4. Step 4: Simplify right side
    442,758.06x = 203,620,721,480.58
  5. Step 5: Solve for x
    x = 203,620,721,480.58/442,758.06
  6. Step 6: Final answer
    x = 459,891.62

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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.