Home / 801,247.38-1,105,724.61-438,705

Finding the Fourth Proportional to 801,247.38, 1,105,724.61 and 438,705

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Solution

The fourth proportional to 801,247.38, 1,105,724.61 and 438,705 is: 605,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,247.38 : 1,105,724.61 = 438,705 : x
  2. Step 2: Convert to fraction form
    801,247.38/1,105,724.61 = 438,705/x
  3. Step 3: Cross multiply
    801,247.38x = 1,105,724.61 × 438,705
  4. Step 4: Simplify right side
    801,247.38x = 485,086,915,030.05
  5. Step 5: Solve for x
    x = 485,086,915,030.05/801,247.38
  6. Step 6: Final answer
    x = 605,414.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.