Home / 828,729.20-1,241,344.20-688,761.20

Finding the Fourth Proportional to 828,729.20, 1,241,344.20 and 688,761.20

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Solution

The fourth proportional to 828,729.20, 1,241,344.20 and 688,761.20 is: 1,031,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,729.20 : 1,241,344.20 = 688,761.20 : x
  2. Step 2: Convert to fraction form
    828,729.20/1,241,344.20 = 688,761.20/x
  3. Step 3: Cross multiply
    828,729.20x = 1,241,344.20 × 688,761.20
  4. Step 4: Simplify right side
    828,729.20x = 854,989,720,805.04
  5. Step 5: Solve for x
    x = 854,989,720,805.04/828,729.20
  6. Step 6: Final answer
    x = 1,031,687.70

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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.