Home / 787,687.98-1,086,571.72-516,193.80

Finding the Fourth Proportional to 787,687.98, 1,086,571.72 and 516,193.80

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Solution

The fourth proportional to 787,687.98, 1,086,571.72 and 516,193.80 is: 712,060.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,687.98 : 1,086,571.72 = 516,193.80 : x
  2. Step 2: Convert to fraction form
    787,687.98/1,086,571.72 = 516,193.80/x
  3. Step 3: Cross multiply
    787,687.98x = 1,086,571.72 × 516,193.80
  4. Step 4: Simplify right side
    787,687.98x = 560,881,585,119.34
  5. Step 5: Solve for x
    x = 560,881,585,119.34/787,687.98
  6. Step 6: Final answer
    x = 712,060.61

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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.