Home / 1,244,331.20-1,868,465.10-945,149.60

Finding the Fourth Proportional to 1,244,331.20, 1,868,465.10 and 945,149.60

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Solution

The fourth proportional to 1,244,331.20, 1,868,465.10 and 945,149.60 is: 1,419,219.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,331.20 : 1,868,465.10 = 945,149.60 : x
  2. Step 2: Convert to fraction form
    1,244,331.20/1,868,465.10 = 945,149.60/x
  3. Step 3: Cross multiply
    1,244,331.20x = 1,868,465.10 × 945,149.60
  4. Step 4: Simplify right side
    1,244,331.20x = 1,765,979,041,878.96
  5. Step 5: Solve for x
    x = 1,765,979,041,878.96/1,244,331.20
  6. Step 6: Final answer
    x = 1,419,219.45

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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.