Home / 762,151.05-1,142,229.97-312,345.30

Finding the Fourth Proportional to 762,151.05, 1,142,229.97 and 312,345.30

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Solution

The fourth proportional to 762,151.05, 1,142,229.97 and 312,345.30 is: 468,109.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,151.05 : 1,142,229.97 = 312,345.30 : x
  2. Step 2: Convert to fraction form
    762,151.05/1,142,229.97 = 312,345.30/x
  3. Step 3: Cross multiply
    762,151.05x = 1,142,229.97 × 312,345.30
  4. Step 4: Simplify right side
    762,151.05x = 356,770,158,755.71
  5. Step 5: Solve for x
    x = 356,770,158,755.71/762,151.05
  6. Step 6: Final answer
    x = 468,109.51

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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.