Home / 1,112,665.10-1,669,682.92-438,631.70

Finding the Fourth Proportional to 1,112,665.10, 1,669,682.92 and 438,631.70

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Solution

The fourth proportional to 1,112,665.10, 1,669,682.92 and 438,631.70 is: 658,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,665.10 : 1,669,682.92 = 438,631.70 : x
  2. Step 2: Convert to fraction form
    1,112,665.10/1,669,682.92 = 438,631.70/x
  3. Step 3: Cross multiply
    1,112,665.10x = 1,669,682.92 × 438,631.70
  4. Step 4: Simplify right side
    1,112,665.10x = 732,375,857,660.56
  5. Step 5: Solve for x
    x = 732,375,857,660.56/1,112,665.10
  6. Step 6: Final answer
    x = 658,217.70

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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.