Home / 420,850.32-580,776.44-229,863.66

Finding the Fourth Proportional to 420,850.32, 580,776.44 and 229,863.66

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Solution

The fourth proportional to 420,850.32, 580,776.44 and 229,863.66 is: 317,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,850.32 : 580,776.44 = 229,863.66 : x
  2. Step 2: Convert to fraction form
    420,850.32/580,776.44 = 229,863.66/x
  3. Step 3: Cross multiply
    420,850.32x = 580,776.44 × 229,863.66
  4. Step 4: Simplify right side
    420,850.32x = 133,499,398,140.17
  5. Step 5: Solve for x
    x = 133,499,398,140.17/420,850.32
  6. Step 6: Final answer
    x = 317,213.49

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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.