Home / 1,425,585.56-2,138,697.52-478,930.46

Finding the Fourth Proportional to 1,425,585.56, 2,138,697.52 and 478,930.46

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Solution

The fourth proportional to 1,425,585.56, 2,138,697.52 and 478,930.46 is: 718,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,585.56 : 2,138,697.52 = 478,930.46 : x
  2. Step 2: Convert to fraction form
    1,425,585.56/2,138,697.52 = 478,930.46/x
  3. Step 3: Cross multiply
    1,425,585.56x = 2,138,697.52 × 478,930.46
  4. Step 4: Simplify right side
    1,425,585.56x = 1,024,287,375,163.65
  5. Step 5: Solve for x
    x = 1,024,287,375,163.65/1,425,585.56
  6. Step 6: Final answer
    x = 718,502.91

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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.