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Finding the Fourth Proportional to 392,752.06, 588,578.94 and 212,448.29

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Solution

The fourth proportional to 392,752.06, 588,578.94 and 212,448.29 is: 318,375.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,752.06 : 588,578.94 = 212,448.29 : x
  2. Step 2: Convert to fraction form
    392,752.06/588,578.94 = 212,448.29/x
  3. Step 3: Cross multiply
    392,752.06x = 588,578.94 × 212,448.29
  4. Step 4: Simplify right side
    392,752.06x = 125,042,586,390.12
  5. Step 5: Solve for x
    x = 125,042,586,390.12/392,752.06
  6. Step 6: Final answer
    x = 318,375.38

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1.5x scale

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.