Home / 787,689.98-1,086,574.48-516,195.80

Finding the Fourth Proportional to 787,689.98, 1,086,574.48 and 516,195.80

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Solution

The fourth proportional to 787,689.98, 1,086,574.48 and 516,195.80 is: 712,063.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,689.98 : 1,086,574.48 = 516,195.80 : x
  2. Step 2: Convert to fraction form
    787,689.98/1,086,574.48 = 516,195.80/x
  3. Step 3: Cross multiply
    787,689.98x = 1,086,574.48 × 516,195.80
  4. Step 4: Simplify right side
    787,689.98x = 560,885,182,963.18
  5. Step 5: Solve for x
    x = 560,885,182,963.18/787,689.98
  6. Step 6: Final answer
    x = 712,063.37

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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.