Home / 664,468.20-996,848.10-215,112.60

Finding the Fourth Proportional to 664,468.20, 996,848.10 and 215,112.60

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Solution

The fourth proportional to 664,468.20, 996,848.10 and 215,112.60 is: 322,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,468.20 : 996,848.10 = 215,112.60 : x
  2. Step 2: Convert to fraction form
    664,468.20/996,848.10 = 215,112.60/x
  3. Step 3: Cross multiply
    664,468.20x = 996,848.10 × 215,112.60
  4. Step 4: Simplify right side
    664,468.20x = 214,434,586,596.06
  5. Step 5: Solve for x
    x = 214,434,586,596.06/664,468.20
  6. Step 6: Final answer
    x = 322,716.10

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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.