Home / 678,892.92-1,016,788.20-324,155.34

Finding the Fourth Proportional to 678,892.92, 1,016,788.20 and 324,155.34

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Solution

The fourth proportional to 678,892.92, 1,016,788.20 and 324,155.34 is: 485,492.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,892.92 : 1,016,788.20 = 324,155.34 : x
  2. Step 2: Convert to fraction form
    678,892.92/1,016,788.20 = 324,155.34/x
  3. Step 3: Cross multiply
    678,892.92x = 1,016,788.20 × 324,155.34
  4. Step 4: Simplify right side
    678,892.92x = 329,597,324,678.99
  5. Step 5: Solve for x
    x = 329,597,324,678.99/678,892.92
  6. Step 6: Final answer
    x = 485,492.36

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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.