Home / 639,505.36-882,517.54-353,025.64

Finding the Fourth Proportional to 639,505.36, 882,517.54 and 353,025.64

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Solution

The fourth proportional to 639,505.36, 882,517.54 and 353,025.64 is: 487,175.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,505.36 : 882,517.54 = 353,025.64 : x
  2. Step 2: Convert to fraction form
    639,505.36/882,517.54 = 353,025.64/x
  3. Step 3: Cross multiply
    639,505.36x = 882,517.54 × 353,025.64
  4. Step 4: Simplify right side
    639,505.36x = 311,551,319,369.73
  5. Step 5: Solve for x
    x = 311,551,319,369.73/639,505.36
  6. Step 6: Final answer
    x = 487,175.46

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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.