Home / 691,739.04-954,614.56-389,932.96

Finding the Fourth Proportional to 691,739.04, 954,614.56 and 389,932.96

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Solution

The fourth proportional to 691,739.04, 954,614.56 and 389,932.96 is: 538,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,739.04 : 954,614.56 = 389,932.96 : x
  2. Step 2: Convert to fraction form
    691,739.04/954,614.56 = 389,932.96/x
  3. Step 3: Cross multiply
    691,739.04x = 954,614.56 × 389,932.96
  4. Step 4: Simplify right side
    691,739.04x = 372,235,681,039.90
  5. Step 5: Solve for x
    x = 372,235,681,039.90/691,739.04
  6. Step 6: Final answer
    x = 538,115.76

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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.