Home / 723,998.40-1,086,348.20-297,849.15

Finding the Fourth Proportional to 723,998.40, 1,086,348.20 and 297,849.15

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Solution

The fourth proportional to 723,998.40, 1,086,348.20 and 297,849.15 is: 446,917.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,998.40 : 1,086,348.20 = 297,849.15 : x
  2. Step 2: Convert to fraction form
    723,998.40/1,086,348.20 = 297,849.15/x
  3. Step 3: Cross multiply
    723,998.40x = 1,086,348.20 × 297,849.15
  4. Step 4: Simplify right side
    723,998.40x = 323,567,886,484.78
  5. Step 5: Solve for x
    x = 323,567,886,484.78/723,998.40
  6. Step 6: Final answer
    x = 446,917.96

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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.