Home / 819,164.55-1,228,745.76-220,125.72

Finding the Fourth Proportional to 819,164.55, 1,228,745.76 and 220,125.72

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Solution

The fourth proportional to 819,164.55, 1,228,745.76 and 220,125.72 is: 330,188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,164.55 : 1,228,745.76 = 220,125.72 : x
  2. Step 2: Convert to fraction form
    819,164.55/1,228,745.76 = 220,125.72/x
  3. Step 3: Cross multiply
    819,164.55x = 1,228,745.76 × 220,125.72
  4. Step 4: Simplify right side
    819,164.55x = 270,478,545,116.95
  5. Step 5: Solve for x
    x = 270,478,545,116.95/819,164.55
  6. Step 6: Final answer
    x = 330,188.29

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1.5x scale

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.