Home / 639,471.13-882,470.33-352,991.41

Finding the Fourth Proportional to 639,471.13, 882,470.33 and 352,991.41

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Solution

The fourth proportional to 639,471.13, 882,470.33 and 352,991.41 is: 487,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,471.13 : 882,470.33 = 352,991.41 : x
  2. Step 2: Convert to fraction form
    639,471.13/882,470.33 = 352,991.41/x
  3. Step 3: Cross multiply
    639,471.13x = 882,470.33 × 352,991.41
  4. Step 4: Simplify right side
    639,471.13x = 311,504,444,304.91
  5. Step 5: Solve for x
    x = 311,504,444,304.91/639,471.13
  6. Step 6: Final answer
    x = 487,128.24

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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.