Home / 752,512.28-1,128,940.82-326,119.64

Finding the Fourth Proportional to 752,512.28, 1,128,940.82 and 326,119.64

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Solution

The fourth proportional to 752,512.28, 1,128,940.82 and 326,119.64 is: 489,254.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,512.28 : 1,128,940.82 = 326,119.64 : x
  2. Step 2: Convert to fraction form
    752,512.28/1,128,940.82 = 326,119.64/x
  3. Step 3: Cross multiply
    752,512.28x = 1,128,940.82 × 326,119.64
  4. Step 4: Simplify right side
    752,512.28x = 368,169,766,524.40
  5. Step 5: Solve for x
    x = 368,169,766,524.40/752,512.28
  6. Step 6: Final answer
    x = 489,254.17

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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.