Home / 451,846.40-678,439.20-252,564.80

Finding the Fourth Proportional to 451,846.40, 678,439.20 and 252,564.80

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Solution

The fourth proportional to 451,846.40, 678,439.20 and 252,564.80 is: 379,221.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,846.40 : 678,439.20 = 252,564.80 : x
  2. Step 2: Convert to fraction form
    451,846.40/678,439.20 = 252,564.80/x
  3. Step 3: Cross multiply
    451,846.40x = 678,439.20 × 252,564.80
  4. Step 4: Simplify right side
    451,846.40x = 171,349,860,860.16
  5. Step 5: Solve for x
    x = 171,349,860,860.16/451,846.40
  6. Step 6: Final answer
    x = 379,221.48

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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.