Home / 1,324,874.80-1,984,979.40-1,086,929.20

Finding the Fourth Proportional to 1,324,874.80, 1,984,979.40 and 1,086,929.20

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Solution

The fourth proportional to 1,324,874.80, 1,984,979.40 and 1,086,929.20 is: 1,628,479.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,874.80 : 1,984,979.40 = 1,086,929.20 : x
  2. Step 2: Convert to fraction form
    1,324,874.80/1,984,979.40 = 1,086,929.20/x
  3. Step 3: Cross multiply
    1,324,874.80x = 1,984,979.40 × 1,086,929.20
  4. Step 4: Simplify right side
    1,324,874.80x = 2,157,532,071,258.48
  5. Step 5: Solve for x
    x = 2,157,532,071,258.48/1,324,874.80
  6. Step 6: Final answer
    x = 1,628,479.97

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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.