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Finding the Fourth Proportional to 489,321.80, 733,982.70 and 489,321.80

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Solution

The fourth proportional to 489,321.80, 733,982.70 and 489,321.80 is: 733,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,321.80 : 733,982.70 = 489,321.80 : x
  2. Step 2: Convert to fraction form
    489,321.80/733,982.70 = 489,321.80/x
  3. Step 3: Cross multiply
    489,321.80x = 733,982.70 × 489,321.80
  4. Step 4: Simplify right side
    489,321.80x = 359,153,735,932.86
  5. Step 5: Solve for x
    x = 359,153,735,932.86/489,321.80
  6. Step 6: Final answer
    x = 733,982.70

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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.