Home / 1,111,990.80-1,667,986.20-733,421.10

Finding the Fourth Proportional to 1,111,990.80, 1,667,986.20 and 733,421.10

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Solution

The fourth proportional to 1,111,990.80, 1,667,986.20 and 733,421.10 is: 1,100,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,990.80 : 1,667,986.20 = 733,421.10 : x
  2. Step 2: Convert to fraction form
    1,111,990.80/1,667,986.20 = 733,421.10/x
  3. Step 3: Cross multiply
    1,111,990.80x = 1,667,986.20 × 733,421.10
  4. Step 4: Simplify right side
    1,111,990.80x = 1,223,336,273,588.82
  5. Step 5: Solve for x
    x = 1,223,336,273,588.82/1,111,990.80
  6. Step 6: Final answer
    x = 1,100,131.65

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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.