Home / 420,614.96-580,426.68-229,591.44

Finding the Fourth Proportional to 420,614.96, 580,426.68 and 229,591.44

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Solution

The fourth proportional to 420,614.96, 580,426.68 and 229,591.44 is: 316,824.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,614.96 : 580,426.68 = 229,591.44 : x
  2. Step 2: Convert to fraction form
    420,614.96/580,426.68 = 229,591.44/x
  3. Step 3: Cross multiply
    420,614.96x = 580,426.68 × 229,591.44
  4. Step 4: Simplify right side
    420,614.96x = 133,260,997,275.62
  5. Step 5: Solve for x
    x = 133,260,997,275.62/420,614.96
  6. Step 6: Final answer
    x = 316,824.20

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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.