Home / 752,915.66-1,128,680.40-326,183.36

Finding the Fourth Proportional to 752,915.66, 1,128,680.40 and 326,183.36

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Solution

The fourth proportional to 752,915.66, 1,128,680.40 and 326,183.36 is: 488,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,915.66 : 1,128,680.40 = 326,183.36 : x
  2. Step 2: Convert to fraction form
    752,915.66/1,128,680.40 = 326,183.36/x
  3. Step 3: Cross multiply
    752,915.66x = 1,128,680.40 × 326,183.36
  4. Step 4: Simplify right side
    752,915.66x = 368,156,765,238.14
  5. Step 5: Solve for x
    x = 368,156,765,238.14/752,915.66
  6. Step 6: Final answer
    x = 488,974.77

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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.