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Finding the Fourth Proportional to 639,842.56, 959,025.73 and 240,228.46

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Solution

The fourth proportional to 639,842.56, 959,025.73 and 240,228.46 is: 360,065.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,842.56 : 959,025.73 = 240,228.46 : x
  2. Step 2: Convert to fraction form
    639,842.56/959,025.73 = 240,228.46/x
  3. Step 3: Cross multiply
    639,842.56x = 959,025.73 × 240,228.46
  4. Step 4: Simplify right side
    639,842.56x = 230,385,274,218.28
  5. Step 5: Solve for x
    x = 230,385,274,218.28/639,842.56
  6. Step 6: Final answer
    x = 360,065.57

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1.5x scale

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.