Home / 451,844.40-678,436.20-252,562.80

Finding the Fourth Proportional to 451,844.40, 678,436.20 and 252,562.80

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Solution

The fourth proportional to 451,844.40, 678,436.20 and 252,562.80 is: 379,218.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,844.40 : 678,436.20 = 252,562.80 : x
  2. Step 2: Convert to fraction form
    451,844.40/678,436.20 = 252,562.80/x
  3. Step 3: Cross multiply
    451,844.40x = 678,436.20 × 252,562.80
  4. Step 4: Simplify right side
    451,844.40x = 171,347,746,293.36
  5. Step 5: Solve for x
    x = 171,347,746,293.36/451,844.40
  6. Step 6: Final answer
    x = 379,218.48

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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.