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Finding the Fourth Proportional to 489,081.80, 733,987.20 and 252,302.60

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Solution

The fourth proportional to 489,081.80, 733,987.20 and 252,302.60 is: 378,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,081.80 : 733,987.20 = 252,302.60 : x
  2. Step 2: Convert to fraction form
    489,081.80/733,987.20 = 252,302.60/x
  3. Step 3: Cross multiply
    489,081.80x = 733,987.20 × 252,302.60
  4. Step 4: Simplify right side
    489,081.80x = 185,186,878,926.72
  5. Step 5: Solve for x
    x = 185,186,878,926.72/489,081.80
  6. Step 6: Final answer
    x = 378,641.93

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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.