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Finding the Fourth Proportional to 489,590.46, 733,854.30 and 189,982.80

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Solution

The fourth proportional to 489,590.46, 733,854.30 and 189,982.80 is: 284,768.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,590.46 : 733,854.30 = 189,982.80 : x
  2. Step 2: Convert to fraction form
    489,590.46/733,854.30 = 189,982.80/x
  3. Step 3: Cross multiply
    489,590.46x = 733,854.30 × 189,982.80
  4. Step 4: Simplify right side
    489,590.46x = 139,419,694,706.04
  5. Step 5: Solve for x
    x = 139,419,694,706.04/489,590.46
  6. Step 6: Final answer
    x = 284,768.00

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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.