Home / 826,753.30-1,239,647.24-320,722.90

Finding the Fourth Proportional to 826,753.30, 1,239,647.24 and 320,722.90

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Solution

The fourth proportional to 826,753.30, 1,239,647.24 and 320,722.90 is: 480,897.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,753.30 : 1,239,647.24 = 320,722.90 : x
  2. Step 2: Convert to fraction form
    826,753.30/1,239,647.24 = 320,722.90/x
  3. Step 3: Cross multiply
    826,753.30x = 1,239,647.24 × 320,722.90
  4. Step 4: Simplify right side
    826,753.30x = 397,583,257,789.80
  5. Step 5: Solve for x
    x = 397,583,257,789.80/826,753.30
  6. Step 6: Final answer
    x = 480,897.09

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1.5x scale

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.