Home / 739,727.80-1,109,591.70-687,239.80

Finding the Fourth Proportional to 739,727.80, 1,109,591.70 and 687,239.80

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Solution

The fourth proportional to 739,727.80, 1,109,591.70 and 687,239.80 is: 1,030,859.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,727.80 : 1,109,591.70 = 687,239.80 : x
  2. Step 2: Convert to fraction form
    739,727.80/1,109,591.70 = 687,239.80/x
  3. Step 3: Cross multiply
    739,727.80x = 1,109,591.70 × 687,239.80
  4. Step 4: Simplify right side
    739,727.80x = 762,555,577,989.66
  5. Step 5: Solve for x
    x = 762,555,577,989.66/739,727.80
  6. Step 6: Final answer
    x = 1,030,859.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.