Home / 489,297.20-733,945.80-329,864.90

Finding the Fourth Proportional to 489,297.20, 733,945.80 and 329,864.90

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Solution

The fourth proportional to 489,297.20, 733,945.80 and 329,864.90 is: 494,797.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,297.20 : 733,945.80 = 329,864.90 : x
  2. Step 2: Convert to fraction form
    489,297.20/733,945.80 = 329,864.90/x
  3. Step 3: Cross multiply
    489,297.20x = 733,945.80 × 329,864.90
  4. Step 4: Simplify right side
    489,297.20x = 242,102,957,922.42
  5. Step 5: Solve for x
    x = 242,102,957,922.42/489,297.20
  6. Step 6: Final answer
    x = 494,797.35

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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.