Home / 398,286.06-597,429.09-117,781.44

Finding the Fourth Proportional to 398,286.06, 597,429.09 and 117,781.44

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Solution

The fourth proportional to 398,286.06, 597,429.09 and 117,781.44 is: 176,672.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,286.06 : 597,429.09 = 117,781.44 : x
  2. Step 2: Convert to fraction form
    398,286.06/597,429.09 = 117,781.44/x
  3. Step 3: Cross multiply
    398,286.06x = 597,429.09 × 117,781.44
  4. Step 4: Simplify right side
    398,286.06x = 70,366,058,518.09
  5. Step 5: Solve for x
    x = 70,366,058,518.09/398,286.06
  6. Step 6: Final answer
    x = 176,672.16

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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.