Home / 723,919.20-1,086,008.40-303,237.60

Finding the Fourth Proportional to 723,919.20, 1,086,008.40 and 303,237.60

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Solution

The fourth proportional to 723,919.20, 1,086,008.40 and 303,237.60 is: 454,910.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,919.20 : 1,086,008.40 = 303,237.60 : x
  2. Step 2: Convert to fraction form
    723,919.20/1,086,008.40 = 303,237.60/x
  3. Step 3: Cross multiply
    723,919.20x = 1,086,008.40 × 303,237.60
  4. Step 4: Simplify right side
    723,919.20x = 329,318,580,795.84
  5. Step 5: Solve for x
    x = 329,318,580,795.84/723,919.20
  6. Step 6: Final answer
    x = 454,910.69

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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.