Home / 388,348.60-582,606.06-219,948.52

Finding the Fourth Proportional to 388,348.60, 582,606.06 and 219,948.52

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Solution

The fourth proportional to 388,348.60, 582,606.06 and 219,948.52 is: 329,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,348.60 : 582,606.06 = 219,948.52 : x
  2. Step 2: Convert to fraction form
    388,348.60/582,606.06 = 219,948.52/x
  3. Step 3: Cross multiply
    388,348.60x = 582,606.06 × 219,948.52
  4. Step 4: Simplify right side
    388,348.60x = 128,143,340,640.03
  5. Step 5: Solve for x
    x = 128,143,340,640.03/388,348.60
  6. Step 6: Final answer
    x = 329,969.88

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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.