Home / 639,051.40-881,876.19-352,571.41

Finding the Fourth Proportional to 639,051.40, 881,876.19 and 352,571.41

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Solution

The fourth proportional to 639,051.40, 881,876.19 and 352,571.41 is: 486,540.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,051.40 : 881,876.19 = 352,571.41 : x
  2. Step 2: Convert to fraction form
    639,051.40/881,876.19 = 352,571.41/x
  3. Step 3: Cross multiply
    639,051.40x = 881,876.19 × 352,571.41
  4. Step 4: Simplify right side
    639,051.40x = 310,924,331,753.73
  5. Step 5: Solve for x
    x = 310,924,331,753.73/639,051.40
  6. Step 6: Final answer
    x = 486,540.41

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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.