Home / 589,451.10-813,442.53-321,179.10

Finding the Fourth Proportional to 589,451.10, 813,442.53 and 321,179.10

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Solution

The fourth proportional to 589,451.10, 813,442.53 and 321,179.10 is: 443,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,451.10 : 813,442.53 = 321,179.10 : x
  2. Step 2: Convert to fraction form
    589,451.10/813,442.53 = 321,179.10/x
  3. Step 3: Cross multiply
    589,451.10x = 813,442.53 × 321,179.10
  4. Step 4: Simplify right side
    589,451.10x = 261,260,739,687.12
  5. Step 5: Solve for x
    x = 261,260,739,687.12/589,451.10
  6. Step 6: Final answer
    x = 443,227.16

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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.