Home / 679,944.60-1,017,843.30-398,626.20

Finding the Fourth Proportional to 679,944.60, 1,017,843.30 and 398,626.20

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Solution

The fourth proportional to 679,944.60, 1,017,843.30 and 398,626.20 is: 596,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,944.60 : 1,017,843.30 = 398,626.20 : x
  2. Step 2: Convert to fraction form
    679,944.60/1,017,843.30 = 398,626.20/x
  3. Step 3: Cross multiply
    679,944.60x = 1,017,843.30 × 398,626.20
  4. Step 4: Simplify right side
    679,944.60x = 405,739,006,874.46
  5. Step 5: Solve for x
    x = 405,739,006,874.46/679,944.60
  6. Step 6: Final answer
    x = 596,723.63

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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.