Home / 1,231,763.10-1,846,939.14-378,612.78

Finding the Fourth Proportional to 1,231,763.10, 1,846,939.14 and 378,612.78

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Solution

The fourth proportional to 1,231,763.10, 1,846,939.14 and 378,612.78 is: 567,702.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,763.10 : 1,846,939.14 = 378,612.78 : x
  2. Step 2: Convert to fraction form
    1,231,763.10/1,846,939.14 = 378,612.78/x
  3. Step 3: Cross multiply
    1,231,763.10x = 1,846,939.14 × 378,612.78
  4. Step 4: Simplify right side
    1,231,763.10x = 699,274,762,286.21
  5. Step 5: Solve for x
    x = 699,274,762,286.21/1,231,763.10
  6. Step 6: Final answer
    x = 567,702.31

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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.