Home / 639,034.28-881,836.50-348,628.56

Finding the Fourth Proportional to 639,034.28, 881,836.50 and 348,628.56

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Solution

The fourth proportional to 639,034.28, 881,836.50 and 348,628.56 is: 481,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,034.28 : 881,836.50 = 348,628.56 : x
  2. Step 2: Convert to fraction form
    639,034.28/881,836.50 = 348,628.56/x
  3. Step 3: Cross multiply
    639,034.28x = 881,836.50 × 348,628.56
  4. Step 4: Simplify right side
    639,034.28x = 307,433,389,150.44
  5. Step 5: Solve for x
    x = 307,433,389,150.44/639,034.28
  6. Step 6: Final answer
    x = 481,090.61

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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.