Home / 501,422.86-691,959.48-271,979.57

Finding the Fourth Proportional to 501,422.86, 691,959.48 and 271,979.57

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Solution

The fourth proportional to 501,422.86, 691,959.48 and 271,979.57 is: 375,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,422.86 : 691,959.48 = 271,979.57 : x
  2. Step 2: Convert to fraction form
    501,422.86/691,959.48 = 271,979.57/x
  3. Step 3: Cross multiply
    501,422.86x = 691,959.48 × 271,979.57
  4. Step 4: Simplify right side
    501,422.86x = 188,198,841,827.82
  5. Step 5: Solve for x
    x = 188,198,841,827.82/501,422.86
  6. Step 6: Final answer
    x = 375,329.60

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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.