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Finding the Fourth Proportional to 2,738,471.60, 4,108,290.60 and 845,404.40

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Solution

The fourth proportional to 2,738,471.60, 4,108,290.60 and 845,404.40 is: 1,268,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738,471.60 : 4,108,290.60 = 845,404.40 : x
  2. Step 2: Convert to fraction form
    2,738,471.60/4,108,290.60 = 845,404.40/x
  3. Step 3: Cross multiply
    2,738,471.60x = 4,108,290.60 × 845,404.40
  4. Step 4: Simplify right side
    2,738,471.60x = 3,473,166,949,718.64
  5. Step 5: Solve for x
    x = 3,473,166,949,718.64/2,738,471.60
  6. Step 6: Final answer
    x = 1,268,286.64

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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.