Home / 502,540.98-693,668.16-321,739.86

Finding the Fourth Proportional to 502,540.98, 693,668.16 and 321,739.86

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Solution

The fourth proportional to 502,540.98, 693,668.16 and 321,739.86 is: 444,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,540.98 : 693,668.16 = 321,739.86 : x
  2. Step 2: Convert to fraction form
    502,540.98/693,668.16 = 321,739.86/x
  3. Step 3: Cross multiply
    502,540.98x = 693,668.16 × 321,739.86
  4. Step 4: Simplify right side
    502,540.98x = 223,180,696,684.86
  5. Step 5: Solve for x
    x = 223,180,696,684.86/502,540.98
  6. Step 6: Final answer
    x = 444,104.47

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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.