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Finding the Fourth Proportional to 489,315.84, 733,797.66 and 169,380.78

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Solution

The fourth proportional to 489,315.84, 733,797.66 and 169,380.78 is: 254,010.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,315.84 : 733,797.66 = 169,380.78 : x
  2. Step 2: Convert to fraction form
    489,315.84/733,797.66 = 169,380.78/x
  3. Step 3: Cross multiply
    489,315.84x = 733,797.66 × 169,380.78
  4. Step 4: Simplify right side
    489,315.84x = 124,291,220,012.98
  5. Step 5: Solve for x
    x = 124,291,220,012.98/489,315.84
  6. Step 6: Final answer
    x = 254,010.21

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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.