Home / 790,189.38-1,185,163.80-257,709.56

Finding the Fourth Proportional to 790,189.38, 1,185,163.80 and 257,709.56

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Solution

The fourth proportional to 790,189.38, 1,185,163.80 and 257,709.56 is: 386,525.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,189.38 : 1,185,163.80 = 257,709.56 : x
  2. Step 2: Convert to fraction form
    790,189.38/1,185,163.80 = 257,709.56/x
  3. Step 3: Cross multiply
    790,189.38x = 1,185,163.80 × 257,709.56
  4. Step 4: Simplify right side
    790,189.38x = 305,428,041,425.93
  5. Step 5: Solve for x
    x = 305,428,041,425.93/790,189.38
  6. Step 6: Final answer
    x = 386,525.12

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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.