Home / 812,116.54-1,217,754.29-432,935.43

Finding the Fourth Proportional to 812,116.54, 1,217,754.29 and 432,935.43

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Solution

The fourth proportional to 812,116.54, 1,217,754.29 and 432,935.43 is: 649,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,116.54 : 1,217,754.29 = 432,935.43 : x
  2. Step 2: Convert to fraction form
    812,116.54/1,217,754.29 = 432,935.43/x
  3. Step 3: Cross multiply
    812,116.54x = 1,217,754.29 × 432,935.43
  4. Step 4: Simplify right side
    812,116.54x = 527,208,977,175.50
  5. Step 5: Solve for x
    x = 527,208,977,175.50/812,116.54
  6. Step 6: Final answer
    x = 649,178.97

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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.