Home / 669,140.20-1,003,418.70-269,648.20

Finding the Fourth Proportional to 669,140.20, 1,003,418.70 and 269,648.20

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Solution

The fourth proportional to 669,140.20, 1,003,418.70 and 269,648.20 is: 404,354.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,140.20 : 1,003,418.70 = 269,648.20 : x
  2. Step 2: Convert to fraction form
    669,140.20/1,003,418.70 = 269,648.20/x
  3. Step 3: Cross multiply
    669,140.20x = 1,003,418.70 × 269,648.20
  4. Step 4: Simplify right side
    669,140.20x = 270,570,046,301.34
  5. Step 5: Solve for x
    x = 270,570,046,301.34/669,140.20
  6. Step 6: Final answer
    x = 404,354.79

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Double scale
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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.