Home / 787,689.11-1,086,573.27-516,194.93

Finding the Fourth Proportional to 787,689.11, 1,086,573.27 and 516,194.93

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Solution

The fourth proportional to 787,689.11, 1,086,573.27 and 516,194.93 is: 712,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,689.11 : 1,086,573.27 = 516,194.93 : x
  2. Step 2: Convert to fraction form
    787,689.11/1,086,573.27 = 516,194.93/x
  3. Step 3: Cross multiply
    787,689.11x = 1,086,573.27 × 516,194.93
  4. Step 4: Simplify right side
    787,689.11x = 560,883,613,047.52
  5. Step 5: Solve for x
    x = 560,883,613,047.52/787,689.11
  6. Step 6: Final answer
    x = 712,062.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.