Home / 729,855.20-1,094,782.80-688,520.90

Finding the Fourth Proportional to 729,855.20, 1,094,782.80 and 688,520.90

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Solution

The fourth proportional to 729,855.20, 1,094,782.80 and 688,520.90 is: 1,032,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,855.20 : 1,094,782.80 = 688,520.90 : x
  2. Step 2: Convert to fraction form
    729,855.20/1,094,782.80 = 688,520.90/x
  3. Step 3: Cross multiply
    729,855.20x = 1,094,782.80 × 688,520.90
  4. Step 4: Simplify right side
    729,855.20x = 753,780,838,760.52
  5. Step 5: Solve for x
    x = 753,780,838,760.52/729,855.20
  6. Step 6: Final answer
    x = 1,032,781.35

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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.