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Finding the Fourth Proportional to 452,556.60, 678,793.41 and 153,039.78

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Solution

The fourth proportional to 452,556.60, 678,793.41 and 153,039.78 is: 229,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,556.60 : 678,793.41 = 153,039.78 : x
  2. Step 2: Convert to fraction form
    452,556.60/678,793.41 = 153,039.78/x
  3. Step 3: Cross multiply
    452,556.60x = 678,793.41 × 153,039.78
  4. Step 4: Simplify right side
    452,556.60x = 103,882,394,131.85
  5. Step 5: Solve for x
    x = 103,882,394,131.85/452,556.60
  6. Step 6: Final answer
    x = 229,545.64

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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.