Home / 388,962.24-582,502.80-321,908.76

Finding the Fourth Proportional to 388,962.24, 582,502.80 and 321,908.76

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Solution

The fourth proportional to 388,962.24, 582,502.80 and 321,908.76 is: 482,084.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,962.24 : 582,502.80 = 321,908.76 : x
  2. Step 2: Convert to fraction form
    388,962.24/582,502.80 = 321,908.76/x
  3. Step 3: Cross multiply
    388,962.24x = 582,502.80 × 321,908.76
  4. Step 4: Simplify right side
    388,962.24x = 187,512,754,044.53
  5. Step 5: Solve for x
    x = 187,512,754,044.53/388,962.24
  6. Step 6: Final answer
    x = 482,084.72

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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.