Home / 589,353.72-813,308.22-321,081.72

Finding the Fourth Proportional to 589,353.72, 813,308.22 and 321,081.72

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Solution

The fourth proportional to 589,353.72, 813,308.22 and 321,081.72 is: 443,092.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,353.72 : 813,308.22 = 321,081.72 : x
  2. Step 2: Convert to fraction form
    589,353.72/813,308.22 = 321,081.72/x
  3. Step 3: Cross multiply
    589,353.72x = 813,308.22 × 321,081.72
  4. Step 4: Simplify right side
    589,353.72x = 261,138,402,167.74
  5. Step 5: Solve for x
    x = 261,138,402,167.74/589,353.72
  6. Step 6: Final answer
    x = 443,092.82

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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.