Home / 810,850.80-1,216,621.80-511,561.20

Finding the Fourth Proportional to 810,850.80, 1,216,621.80 and 511,561.20

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Solution

The fourth proportional to 810,850.80, 1,216,621.80 and 511,561.20 is: 767,559.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,850.80 : 1,216,621.80 = 511,561.20 : x
  2. Step 2: Convert to fraction form
    810,850.80/1,216,621.80 = 511,561.20/x
  3. Step 3: Cross multiply
    810,850.80x = 1,216,621.80 × 511,561.20
  4. Step 4: Simplify right side
    810,850.80x = 622,376,507,954.16
  5. Step 5: Solve for x
    x = 622,376,507,954.16/810,850.80
  6. Step 6: Final answer
    x = 767,559.84

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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.