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Finding the Fourth Proportional to 1,258,949.32, 1,888,982.17 and 659,768.02

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Solution

The fourth proportional to 1,258,949.32, 1,888,982.17 and 659,768.02 is: 989,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,949.32 : 1,888,982.17 = 659,768.02 : x
  2. Step 2: Convert to fraction form
    1,258,949.32/1,888,982.17 = 659,768.02/x
  3. Step 3: Cross multiply
    1,258,949.32x = 1,888,982.17 × 659,768.02
  4. Step 4: Simplify right side
    1,258,949.32x = 1,246,290,019,744.33
  5. Step 5: Solve for x
    x = 1,246,290,019,744.33/1,258,949.32
  6. Step 6: Final answer
    x = 989,944.55

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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.