Home / 752,540.28-1,128,982.77-326,147.64

Finding the Fourth Proportional to 752,540.28, 1,128,982.77 and 326,147.64

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Solution

The fourth proportional to 752,540.28, 1,128,982.77 and 326,147.64 is: 489,296.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,540.28 : 1,128,982.77 = 326,147.64 : x
  2. Step 2: Convert to fraction form
    752,540.28/1,128,982.77 = 326,147.64/x
  3. Step 3: Cross multiply
    752,540.28x = 1,128,982.77 × 326,147.64
  4. Step 4: Simplify right side
    752,540.28x = 368,215,066,036.16
  5. Step 5: Solve for x
    x = 368,215,066,036.16/752,540.28
  6. Step 6: Final answer
    x = 489,296.16

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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.