Home / 788,229.18-1,087,933.32-516,139.04

Finding the Fourth Proportional to 788,229.18, 1,087,933.32 and 516,139.04

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Solution

The fourth proportional to 788,229.18, 1,087,933.32 and 516,139.04 is: 712,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,229.18 : 1,087,933.32 = 516,139.04 : x
  2. Step 2: Convert to fraction form
    788,229.18/1,087,933.32 = 516,139.04/x
  3. Step 3: Cross multiply
    788,229.18x = 1,087,933.32 × 516,139.04
  4. Step 4: Simplify right side
    788,229.18x = 561,524,859,368.81
  5. Step 5: Solve for x
    x = 561,524,859,368.81/788,229.18
  6. Step 6: Final answer
    x = 712,387.81

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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.