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Finding the Fourth Proportional to 489,144.30, 733,716.45 and 347,426.70

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Solution

The fourth proportional to 489,144.30, 733,716.45 and 347,426.70 is: 521,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,144.30 : 733,716.45 = 347,426.70 : x
  2. Step 2: Convert to fraction form
    489,144.30/733,716.45 = 347,426.70/x
  3. Step 3: Cross multiply
    489,144.30x = 733,716.45 × 347,426.70
  4. Step 4: Simplify right side
    489,144.30x = 254,912,684,959.22
  5. Step 5: Solve for x
    x = 254,912,684,959.22/489,144.30
  6. Step 6: Final answer
    x = 521,140.05

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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.