Home / 1,252,921.20-1,879,381.80-722,079.60

Finding the Fourth Proportional to 1,252,921.20, 1,879,381.80 and 722,079.60

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Solution

The fourth proportional to 1,252,921.20, 1,879,381.80 and 722,079.60 is: 1,083,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,921.20 : 1,879,381.80 = 722,079.60 : x
  2. Step 2: Convert to fraction form
    1,252,921.20/1,879,381.80 = 722,079.60/x
  3. Step 3: Cross multiply
    1,252,921.20x = 1,879,381.80 × 722,079.60
  4. Step 4: Simplify right side
    1,252,921.20x = 1,357,063,258,391.28
  5. Step 5: Solve for x
    x = 1,357,063,258,391.28/1,252,921.20
  6. Step 6: Final answer
    x = 1,083,119.40

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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.