Home / 812,118.54-1,217,757.29-432,937.43

Finding the Fourth Proportional to 812,118.54, 1,217,757.29 and 432,937.43

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Solution

The fourth proportional to 812,118.54, 1,217,757.29 and 432,937.43 is: 649,181.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,118.54 : 1,217,757.29 = 432,937.43 : x
  2. Step 2: Convert to fraction form
    812,118.54/1,217,757.29 = 432,937.43/x
  3. Step 3: Cross multiply
    812,118.54x = 1,217,757.29 × 432,937.43
  4. Step 4: Simplify right side
    812,118.54x = 527,212,711,496.37
  5. Step 5: Solve for x
    x = 527,212,711,496.37/812,118.54
  6. Step 6: Final answer
    x = 649,181.97

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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.