Home / 589,279.04-813,205.28-321,007.04

Finding the Fourth Proportional to 589,279.04, 813,205.28 and 321,007.04

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Solution

The fourth proportional to 589,279.04, 813,205.28 and 321,007.04 is: 442,989.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,279.04 : 813,205.28 = 321,007.04 : x
  2. Step 2: Convert to fraction form
    589,279.04/813,205.28 = 321,007.04/x
  3. Step 3: Cross multiply
    589,279.04x = 813,205.28 × 321,007.04
  4. Step 4: Simplify right side
    589,279.04x = 261,044,619,845.17
  5. Step 5: Solve for x
    x = 261,044,619,845.17/589,279.04
  6. Step 6: Final answer
    x = 442,989.83

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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.