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Finding the Fourth Proportional to 489,228.80, 733,843.20 and 437,907.20

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Solution

The fourth proportional to 489,228.80, 733,843.20 and 437,907.20 is: 656,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,228.80 : 733,843.20 = 437,907.20 : x
  2. Step 2: Convert to fraction form
    489,228.80/733,843.20 = 437,907.20/x
  3. Step 3: Cross multiply
    489,228.80x = 733,843.20 × 437,907.20
  4. Step 4: Simplify right side
    489,228.80x = 321,355,220,951.04
  5. Step 5: Solve for x
    x = 321,355,220,951.04/489,228.80
  6. Step 6: Final answer
    x = 656,860.80

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Similar ratio
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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.