Home / 545,832.20-818,748.30-280,111.70

Finding the Fourth Proportional to 545,832.20, 818,748.30 and 280,111.70

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Solution

The fourth proportional to 545,832.20, 818,748.30 and 280,111.70 is: 420,167.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,832.20 : 818,748.30 = 280,111.70 : x
  2. Step 2: Convert to fraction form
    545,832.20/818,748.30 = 280,111.70/x
  3. Step 3: Cross multiply
    545,832.20x = 818,748.30 × 280,111.70
  4. Step 4: Simplify right side
    545,832.20x = 229,340,978,185.11
  5. Step 5: Solve for x
    x = 229,340,978,185.11/545,832.20
  6. Step 6: Final answer
    x = 420,167.55

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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.