Home / 589,426.75-813,408.93-321,154.75

Finding the Fourth Proportional to 589,426.75, 813,408.93 and 321,154.75

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Solution

The fourth proportional to 589,426.75, 813,408.93 and 321,154.75 is: 443,193.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,426.75 : 813,408.93 = 321,154.75 : x
  2. Step 2: Convert to fraction form
    589,426.75/813,408.93 = 321,154.75/x
  3. Step 3: Cross multiply
    589,426.75x = 813,408.93 × 321,154.75
  4. Step 4: Simplify right side
    589,426.75x = 261,230,141,561.92
  5. Step 5: Solve for x
    x = 261,230,141,561.92/589,426.75
  6. Step 6: Final answer
    x = 443,193.56

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Double scale
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1.5x scale

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.