Home / 752,108.40-1,128,241.67-219,630.92

Finding the Fourth Proportional to 752,108.40, 1,128,241.67 and 219,630.92

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Solution

The fourth proportional to 752,108.40, 1,128,241.67 and 219,630.92 is: 329,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,108.40 : 1,128,241.67 = 219,630.92 : x
  2. Step 2: Convert to fraction form
    752,108.40/1,128,241.67 = 219,630.92/x
  3. Step 3: Cross multiply
    752,108.40x = 1,128,241.67 × 219,630.92
  4. Step 4: Simplify right side
    752,108.40x = 247,796,749,225.07
  5. Step 5: Solve for x
    x = 247,796,749,225.07/752,108.40
  6. Step 6: Final answer
    x = 329,469.46

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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.