Home / 325,122.80-487,684.20-272,634.80

Finding the Fourth Proportional to 325,122.80, 487,684.20 and 272,634.80

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Solution

The fourth proportional to 325,122.80, 487,684.20 and 272,634.80 is: 408,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,122.80 : 487,684.20 = 272,634.80 : x
  2. Step 2: Convert to fraction form
    325,122.80/487,684.20 = 272,634.80/x
  3. Step 3: Cross multiply
    325,122.80x = 487,684.20 × 272,634.80
  4. Step 4: Simplify right side
    325,122.80x = 132,959,684,330.16
  5. Step 5: Solve for x
    x = 132,959,684,330.16/325,122.80
  6. Step 6: Final answer
    x = 408,952.20

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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.