Home / 721,694.80-1,082,542.20-348,446.80

Finding the Fourth Proportional to 721,694.80, 1,082,542.20 and 348,446.80

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Solution

The fourth proportional to 721,694.80, 1,082,542.20 and 348,446.80 is: 522,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,694.80 : 1,082,542.20 = 348,446.80 : x
  2. Step 2: Convert to fraction form
    721,694.80/1,082,542.20 = 348,446.80/x
  3. Step 3: Cross multiply
    721,694.80x = 1,082,542.20 × 348,446.80
  4. Step 4: Simplify right side
    721,694.80x = 377,208,365,454.96
  5. Step 5: Solve for x
    x = 377,208,365,454.96/721,694.80
  6. Step 6: Final answer
    x = 522,670.20

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Double scale
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Similar ratio
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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.