Home / 489,311.20-733,966.80-329,878.90

Finding the Fourth Proportional to 489,311.20, 733,966.80 and 329,878.90

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Solution

The fourth proportional to 489,311.20, 733,966.80 and 329,878.90 is: 494,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,311.20 : 733,966.80 = 329,878.90 : x
  2. Step 2: Convert to fraction form
    489,311.20/733,966.80 = 329,878.90/x
  3. Step 3: Cross multiply
    489,311.20x = 733,966.80 × 329,878.90
  4. Step 4: Simplify right side
    489,311.20x = 242,120,160,620.52
  5. Step 5: Solve for x
    x = 242,120,160,620.52/489,311.20
  6. Step 6: Final answer
    x = 494,818.35

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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.