Home / 787,688.11-1,086,571.90-516,193.93

Finding the Fourth Proportional to 787,688.11, 1,086,571.90 and 516,193.93

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Solution

The fourth proportional to 787,688.11, 1,086,571.90 and 516,193.93 is: 712,060.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,688.11 : 1,086,571.90 = 516,193.93 : x
  2. Step 2: Convert to fraction form
    787,688.11/1,086,571.90 = 516,193.93/x
  3. Step 3: Cross multiply
    787,688.11x = 1,086,571.90 × 516,193.93
  4. Step 4: Simplify right side
    787,688.11x = 560,881,819,288.57
  5. Step 5: Solve for x
    x = 560,881,819,288.57/787,688.11
  6. Step 6: Final answer
    x = 712,060.79

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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.