Home / 420,680.36-580,546.98-229,701.32

Finding the Fourth Proportional to 420,680.36, 580,546.98 and 229,701.32

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Solution

The fourth proportional to 420,680.36, 580,546.98 and 229,701.32 is: 316,992.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,680.36 : 580,546.98 = 229,701.32 : x
  2. Step 2: Convert to fraction form
    420,680.36/580,546.98 = 229,701.32/x
  3. Step 3: Cross multiply
    420,680.36x = 580,546.98 × 229,701.32
  4. Step 4: Simplify right side
    420,680.36x = 133,352,407,628.01
  5. Step 5: Solve for x
    x = 133,352,407,628.01/420,680.36
  6. Step 6: Final answer
    x = 316,992.24

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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.