Home / 726,889.20-1,091,500.20-491,276.40

Finding the Fourth Proportional to 726,889.20, 1,091,500.20 and 491,276.40

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Solution

The fourth proportional to 726,889.20, 1,091,500.20 and 491,276.40 is: 737,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,889.20 : 1,091,500.20 = 491,276.40 : x
  2. Step 2: Convert to fraction form
    726,889.20/1,091,500.20 = 491,276.40/x
  3. Step 3: Cross multiply
    726,889.20x = 1,091,500.20 × 491,276.40
  4. Step 4: Simplify right side
    726,889.20x = 536,228,288,855.28
  5. Step 5: Solve for x
    x = 536,228,288,855.28/726,889.20
  6. Step 6: Final answer
    x = 737,702.92

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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.