Home / 392,729.40-541,936.44-220,592.52

Finding the Fourth Proportional to 392,729.40, 541,936.44 and 220,592.52

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Solution

The fourth proportional to 392,729.40, 541,936.44 and 220,592.52 is: 304,400.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,729.40 : 541,936.44 = 220,592.52 : x
  2. Step 2: Convert to fraction form
    392,729.40/541,936.44 = 220,592.52/x
  3. Step 3: Cross multiply
    392,729.40x = 541,936.44 × 220,592.52
  4. Step 4: Simplify right side
    392,729.40x = 119,547,124,979.43
  5. Step 5: Solve for x
    x = 119,547,124,979.43/392,729.40
  6. Step 6: Final answer
    x = 304,400.75

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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.