Home / 420,843.52-580,764.06-229,857.36

Finding the Fourth Proportional to 420,843.52, 580,764.06 and 229,857.36

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Solution

The fourth proportional to 420,843.52, 580,764.06 and 229,857.36 is: 317,203.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,843.52 : 580,764.06 = 229,857.36 : x
  2. Step 2: Convert to fraction form
    420,843.52/580,764.06 = 229,857.36/x
  3. Step 3: Cross multiply
    420,843.52x = 580,764.06 × 229,857.36
  4. Step 4: Simplify right side
    420,843.52x = 133,492,894,703.41
  5. Step 5: Solve for x
    x = 133,492,894,703.41/420,843.52
  6. Step 6: Final answer
    x = 317,203.16

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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.