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Finding the Fourth Proportional to 2,649,661.60, 3,975,529.20 and 966,935.20

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Solution

The fourth proportional to 2,649,661.60, 3,975,529.20 and 966,935.20 is: 1,450,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649,661.60 : 3,975,529.20 = 966,935.20 : x
  2. Step 2: Convert to fraction form
    2,649,661.60/3,975,529.20 = 966,935.20/x
  3. Step 3: Cross multiply
    2,649,661.60x = 3,975,529.20 × 966,935.20
  4. Step 4: Simplify right side
    2,649,661.60x = 3,844,079,122,107.84
  5. Step 5: Solve for x
    x = 3,844,079,122,107.84/2,649,661.60
  6. Step 6: Final answer
    x = 1,450,781.16

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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.