Home / 642,470.22-963,027.18-215,601.32

Finding the Fourth Proportional to 642,470.22, 963,027.18 and 215,601.32

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Solution

The fourth proportional to 642,470.22, 963,027.18 and 215,601.32 is: 323,174.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,470.22 : 963,027.18 = 215,601.32 : x
  2. Step 2: Convert to fraction form
    642,470.22/963,027.18 = 215,601.32/x
  3. Step 3: Cross multiply
    642,470.22x = 963,027.18 × 215,601.32
  4. Step 4: Simplify right side
    642,470.22x = 207,629,933,611.45
  5. Step 5: Solve for x
    x = 207,629,933,611.45/642,470.22
  6. Step 6: Final answer
    x = 323,174.41

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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.