Home / 639,270.81-958,656.92-239,693.85

Finding the Fourth Proportional to 639,270.81, 958,656.92 and 239,693.85

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Solution

The fourth proportional to 639,270.81, 958,656.92 and 239,693.85 is: 359,447.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,270.81 : 958,656.92 = 239,693.85 : x
  2. Step 2: Convert to fraction form
    639,270.81/958,656.92 = 239,693.85/x
  3. Step 3: Cross multiply
    639,270.81x = 958,656.92 × 239,693.85
  4. Step 4: Simplify right side
    639,270.81x = 229,784,166,785.47
  5. Step 5: Solve for x
    x = 229,784,166,785.47/639,270.81
  6. Step 6: Final answer
    x = 359,447.30

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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.