Home / 420,694.49-580,556.10-229,706.51

Finding the Fourth Proportional to 420,694.49, 580,556.10 and 229,706.51

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Solution

The fourth proportional to 420,694.49, 580,556.10 and 229,706.51 is: 316,993.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,694.49 : 580,556.10 = 229,706.51 : x
  2. Step 2: Convert to fraction form
    420,694.49/580,556.10 = 229,706.51/x
  3. Step 3: Cross multiply
    420,694.49x = 580,556.10 × 229,706.51
  4. Step 4: Simplify right side
    420,694.49x = 133,357,516,610.90
  5. Step 5: Solve for x
    x = 133,357,516,610.90/420,694.49
  6. Step 6: Final answer
    x = 316,993.73

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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.