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Finding the Fourth Proportional to 1,995,816.60, 2,993,724.90 and 930,966.30

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Solution

The fourth proportional to 1,995,816.60, 2,993,724.90 and 930,966.30 is: 1,396,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995,816.60 : 2,993,724.90 = 930,966.30 : x
  2. Step 2: Convert to fraction form
    1,995,816.60/2,993,724.90 = 930,966.30/x
  3. Step 3: Cross multiply
    1,995,816.60x = 2,993,724.90 × 930,966.30
  4. Step 4: Simplify right side
    1,995,816.60x = 2,787,056,993,370.87
  5. Step 5: Solve for x
    x = 2,787,056,993,370.87/1,995,816.60
  6. Step 6: Final answer
    x = 1,396,449.45

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Similar ratio
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1.5x scale

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.