Home / 400,538.46-552,694.20-319,074.18

Finding the Fourth Proportional to 400,538.46, 552,694.20 and 319,074.18

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Solution

The fourth proportional to 400,538.46, 552,694.20 and 319,074.18 is: 440,283.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,538.46 : 552,694.20 = 319,074.18 : x
  2. Step 2: Convert to fraction form
    400,538.46/552,694.20 = 319,074.18/x
  3. Step 3: Cross multiply
    400,538.46x = 552,694.20 × 319,074.18
  4. Step 4: Simplify right side
    400,538.46x = 176,350,448,655.76
  5. Step 5: Solve for x
    x = 176,350,448,655.76/400,538.46
  6. Step 6: Final answer
    x = 440,283.43

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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.