Home / 762,149.27-1,142,227.31-312,343.52

Finding the Fourth Proportional to 762,149.27, 1,142,227.31 and 312,343.52

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Solution

The fourth proportional to 762,149.27, 1,142,227.31 and 312,343.52 is: 468,106.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,149.27 : 1,142,227.31 = 312,343.52 : x
  2. Step 2: Convert to fraction form
    762,149.27/1,142,227.31 = 312,343.52/x
  3. Step 3: Cross multiply
    762,149.27x = 1,142,227.31 × 312,343.52
  4. Step 4: Simplify right side
    762,149.27x = 356,767,291,372.68
  5. Step 5: Solve for x
    x = 356,767,291,372.68/762,149.27
  6. Step 6: Final answer
    x = 468,106.85

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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.