Home / 644,922.20-967,383.30-326,057.60

Finding the Fourth Proportional to 644,922.20, 967,383.30 and 326,057.60

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Solution

The fourth proportional to 644,922.20, 967,383.30 and 326,057.60 is: 489,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,922.20 : 967,383.30 = 326,057.60 : x
  2. Step 2: Convert to fraction form
    644,922.20/967,383.30 = 326,057.60/x
  3. Step 3: Cross multiply
    644,922.20x = 967,383.30 × 326,057.60
  4. Step 4: Simplify right side
    644,922.20x = 315,422,677,078.08
  5. Step 5: Solve for x
    x = 315,422,677,078.08/644,922.20
  6. Step 6: Final answer
    x = 489,086.40

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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.