Home / 460,780.47-635,879.97-256,844.32

Finding the Fourth Proportional to 460,780.47, 635,879.97 and 256,844.32

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Solution

The fourth proportional to 460,780.47, 635,879.97 and 256,844.32 is: 354,446.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,780.47 : 635,879.97 = 256,844.32 : x
  2. Step 2: Convert to fraction form
    460,780.47/635,879.97 = 256,844.32/x
  3. Step 3: Cross multiply
    460,780.47x = 635,879.97 × 256,844.32
  4. Step 4: Simplify right side
    460,780.47x = 163,322,156,906.57
  5. Step 5: Solve for x
    x = 163,322,156,906.57/460,780.47
  6. Step 6: Final answer
    x = 354,446.78

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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.