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Finding the Fourth Proportional to 489,246.80, 733,870.20 and 355,845.20

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Solution

The fourth proportional to 489,246.80, 733,870.20 and 355,845.20 is: 533,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,246.80 : 733,870.20 = 355,845.20 : x
  2. Step 2: Convert to fraction form
    489,246.80/733,870.20 = 355,845.20/x
  3. Step 3: Cross multiply
    489,246.80x = 733,870.20 × 355,845.20
  4. Step 4: Simplify right side
    489,246.80x = 261,144,188,093.04
  5. Step 5: Solve for x
    x = 261,144,188,093.04/489,246.80
  6. Step 6: Final answer
    x = 533,767.80

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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.