Home / 408,528.20-563,768.90-229,680.20

Finding the Fourth Proportional to 408,528.20, 563,768.90 and 229,680.20

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Solution

The fourth proportional to 408,528.20, 563,768.90 and 229,680.20 is: 316,958.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,528.20 : 563,768.90 = 229,680.20 : x
  2. Step 2: Convert to fraction form
    408,528.20/563,768.90 = 229,680.20/x
  3. Step 3: Cross multiply
    408,528.20x = 563,768.90 × 229,680.20
  4. Step 4: Simplify right side
    408,528.20x = 129,486,549,738.54
  5. Step 5: Solve for x
    x = 129,486,549,738.54/408,528.20
  6. Step 6: Final answer
    x = 316,958.66

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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.