Home / 489,012.20-733,518.30-329,579.90

Finding the Fourth Proportional to 489,012.20, 733,518.30 and 329,579.90

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Solution

The fourth proportional to 489,012.20, 733,518.30 and 329,579.90 is: 494,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,012.20 : 733,518.30 = 329,579.90 : x
  2. Step 2: Convert to fraction form
    489,012.20/733,518.30 = 329,579.90/x
  3. Step 3: Cross multiply
    489,012.20x = 733,518.30 × 329,579.90
  4. Step 4: Simplify right side
    489,012.20x = 241,752,887,962.17
  5. Step 5: Solve for x
    x = 241,752,887,962.17/489,012.20
  6. Step 6: Final answer
    x = 494,369.85

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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.