Home / 810,851.80-1,216,623.30-511,562.20

Finding the Fourth Proportional to 810,851.80, 1,216,623.30 and 511,562.20

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Solution

The fourth proportional to 810,851.80, 1,216,623.30 and 511,562.20 is: 767,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,851.80 : 1,216,623.30 = 511,562.20 : x
  2. Step 2: Convert to fraction form
    810,851.80/1,216,623.30 = 511,562.20/x
  3. Step 3: Cross multiply
    810,851.80x = 1,216,623.30 × 511,562.20
  4. Step 4: Simplify right side
    810,851.80x = 622,378,491,919.26
  5. Step 5: Solve for x
    x = 622,378,491,919.26/810,851.80
  6. Step 6: Final answer
    x = 767,561.34

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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.