Home / 639,255.56-958,634.02-239,678.60

Finding the Fourth Proportional to 639,255.56, 958,634.02 and 239,678.60

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Solution

The fourth proportional to 639,255.56, 958,634.02 and 239,678.60 is: 359,424.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,255.56 : 958,634.02 = 239,678.60 : x
  2. Step 2: Convert to fraction form
    639,255.56/958,634.02 = 239,678.60/x
  3. Step 3: Cross multiply
    639,255.56x = 958,634.02 × 239,678.60
  4. Step 4: Simplify right side
    639,255.56x = 229,764,059,825.97
  5. Step 5: Solve for x
    x = 229,764,059,825.97/639,255.56
  6. Step 6: Final answer
    x = 359,424.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.