Home / 639,380.14-959,250.03-279,582.64

Finding the Fourth Proportional to 639,380.14, 959,250.03 and 279,582.64

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Solution

The fourth proportional to 639,380.14, 959,250.03 and 279,582.64 is: 419,452.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,380.14 : 959,250.03 = 279,582.64 : x
  2. Step 2: Convert to fraction form
    639,380.14/959,250.03 = 279,582.64/x
  3. Step 3: Cross multiply
    639,380.14x = 959,250.03 × 279,582.64
  4. Step 4: Simplify right side
    639,380.14x = 268,189,655,807.48
  5. Step 5: Solve for x
    x = 268,189,655,807.48/639,380.14
  6. Step 6: Final answer
    x = 419,452.59

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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.