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Finding the Fourth Proportional to 1,775,839.60, 2,660,697.60 and 827,264.80

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Solution

The fourth proportional to 1,775,839.60, 2,660,697.60 and 827,264.80 is: 1,239,470.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,839.60 : 2,660,697.60 = 827,264.80 : x
  2. Step 2: Convert to fraction form
    1,775,839.60/2,660,697.60 = 827,264.80/x
  3. Step 3: Cross multiply
    1,775,839.60x = 2,660,697.60 × 827,264.80
  4. Step 4: Simplify right side
    1,775,839.60x = 2,201,101,467,924.48
  5. Step 5: Solve for x
    x = 2,201,101,467,924.48/1,775,839.60
  6. Step 6: Final answer
    x = 1,239,470.88

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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.