Home / 400,091.38-552,326.88-309,242.04

Finding the Fourth Proportional to 400,091.38, 552,326.88 and 309,242.04

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Solution

The fourth proportional to 400,091.38, 552,326.88 and 309,242.04 is: 426,909.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,091.38 : 552,326.88 = 309,242.04 : x
  2. Step 2: Convert to fraction form
    400,091.38/552,326.88 = 309,242.04/x
  3. Step 3: Cross multiply
    400,091.38x = 552,326.88 × 309,242.04
  4. Step 4: Simplify right side
    400,091.38x = 170,802,687,597.24
  5. Step 5: Solve for x
    x = 170,802,687,597.24/400,091.38
  6. Step 6: Final answer
    x = 426,909.19

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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.