Home / 639,028.52-881,828.56-348,622.78

Finding the Fourth Proportional to 639,028.52, 881,828.56 and 348,622.78

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Solution

The fourth proportional to 639,028.52, 881,828.56 and 348,622.78 is: 481,082.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,028.52 : 881,828.56 = 348,622.78 : x
  2. Step 2: Convert to fraction form
    639,028.52/881,828.56 = 348,622.78/x
  3. Step 3: Cross multiply
    639,028.52x = 881,828.56 × 348,622.78
  4. Step 4: Simplify right side
    639,028.52x = 307,425,524,070.60
  5. Step 5: Solve for x
    x = 307,425,524,070.60/639,028.52
  6. Step 6: Final answer
    x = 481,082.63

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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.