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Finding the Fourth Proportional to 820,680.08, 1,233,185 and 441,880.88

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Solution

The fourth proportional to 820,680.08, 1,233,185 and 441,880.88 is: 663,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,680.08 : 1,233,185 = 441,880.88 : x
  2. Step 2: Convert to fraction form
    820,680.08/1,233,185 = 441,880.88/x
  3. Step 3: Cross multiply
    820,680.08x = 1,233,185 × 441,880.88
  4. Step 4: Simplify right side
    820,680.08x = 544,920,873,002.80
  5. Step 5: Solve for x
    x = 544,920,873,002.80/820,680.08
  6. Step 6: Final answer
    x = 663,986.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.