Home / 1,325,966.20-1,988,949.30-822,081.40

Finding the Fourth Proportional to 1,325,966.20, 1,988,949.30 and 822,081.40

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Solution

The fourth proportional to 1,325,966.20, 1,988,949.30 and 822,081.40 is: 1,233,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,966.20 : 1,988,949.30 = 822,081.40 : x
  2. Step 2: Convert to fraction form
    1,325,966.20/1,988,949.30 = 822,081.40/x
  3. Step 3: Cross multiply
    1,325,966.20x = 1,988,949.30 × 822,081.40
  4. Step 4: Simplify right side
    1,325,966.20x = 1,635,078,225,073.02
  5. Step 5: Solve for x
    x = 1,635,078,225,073.02/1,325,966.20
  6. Step 6: Final answer
    x = 1,233,122.10

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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.