Home / 447,785.24-671,940.30-321,289.16

Finding the Fourth Proportional to 447,785.24, 671,940.30 and 321,289.16

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Solution

The fourth proportional to 447,785.24, 671,940.30 and 321,289.16 is: 482,122.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,785.24 : 671,940.30 = 321,289.16 : x
  2. Step 2: Convert to fraction form
    447,785.24/671,940.30 = 321,289.16/x
  3. Step 3: Cross multiply
    447,785.24x = 671,940.30 × 321,289.16
  4. Step 4: Simplify right side
    447,785.24x = 215,887,134,557.15
  5. Step 5: Solve for x
    x = 215,887,134,557.15/447,785.24
  6. Step 6: Final answer
    x = 482,122.04

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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.