Home / 1,178,846.74-1,764,745.62-721,999.51

Finding the Fourth Proportional to 1,178,846.74, 1,764,745.62 and 721,999.51

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Solution

The fourth proportional to 1,178,846.74, 1,764,745.62 and 721,999.51 is: 1,080,840.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,846.74 : 1,764,745.62 = 721,999.51 : x
  2. Step 2: Convert to fraction form
    1,178,846.74/1,764,745.62 = 721,999.51/x
  3. Step 3: Cross multiply
    1,178,846.74x = 1,764,745.62 × 721,999.51
  4. Step 4: Simplify right side
    1,178,846.74x = 1,274,145,468,502.78
  5. Step 5: Solve for x
    x = 1,274,145,468,502.78/1,178,846.74
  6. Step 6: Final answer
    x = 1,080,840.65

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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.