Home / 681,151.68-1,020,350.52-343,721.88

Finding the Fourth Proportional to 681,151.68, 1,020,350.52 and 343,721.88

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Solution

The fourth proportional to 681,151.68, 1,020,350.52 and 343,721.88 is: 514,887.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,151.68 : 1,020,350.52 = 343,721.88 : x
  2. Step 2: Convert to fraction form
    681,151.68/1,020,350.52 = 343,721.88/x
  3. Step 3: Cross multiply
    681,151.68x = 1,020,350.52 × 343,721.88
  4. Step 4: Simplify right side
    681,151.68x = 350,716,798,993.38
  5. Step 5: Solve for x
    x = 350,716,798,993.38/681,151.68
  6. Step 6: Final answer
    x = 514,887.96

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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.