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Finding the Fourth Proportional to 1,747,506.78, 2,621,559.06 and 800,958.60

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Solution

The fourth proportional to 1,747,506.78, 2,621,559.06 and 800,958.60 is: 1,201,574.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747,506.78 : 2,621,559.06 = 800,958.60 : x
  2. Step 2: Convert to fraction form
    1,747,506.78/2,621,559.06 = 800,958.60/x
  3. Step 3: Cross multiply
    1,747,506.78x = 2,621,559.06 × 800,958.60
  4. Step 4: Simplify right side
    1,747,506.78x = 2,099,760,274,514.92
  5. Step 5: Solve for x
    x = 2,099,760,274,514.92/1,747,506.78
  6. Step 6: Final answer
    x = 1,201,574.89

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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.