Home / 664,565.46-996,822.27-221,333.46

Finding the Fourth Proportional to 664,565.46, 996,822.27 and 221,333.46

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Solution

The fourth proportional to 664,565.46, 996,822.27 and 221,333.46 is: 331,991.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,565.46 : 996,822.27 = 221,333.46 : x
  2. Step 2: Convert to fraction form
    664,565.46/996,822.27 = 221,333.46/x
  3. Step 3: Cross multiply
    664,565.46x = 996,822.27 × 221,333.46
  4. Step 4: Simplify right side
    664,565.46x = 220,630,122,024.15
  5. Step 5: Solve for x
    x = 220,630,122,024.15/664,565.46
  6. Step 6: Final answer
    x = 331,991.56

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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.