Home / 1,992,407.57-2,749,734.24-1,218,491.15

Finding the Fourth Proportional to 1,992,407.57, 2,749,734.24 and 1,218,491.15

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Solution

The fourth proportional to 1,992,407.57, 2,749,734.24 and 1,218,491.15 is: 1,681,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,407.57 : 2,749,734.24 = 1,218,491.15 : x
  2. Step 2: Convert to fraction form
    1,992,407.57/2,749,734.24 = 1,218,491.15/x
  3. Step 3: Cross multiply
    1,992,407.57x = 2,749,734.24 × 1,218,491.15
  4. Step 4: Simplify right side
    1,992,407.57x = 3,350,526,833,441.22
  5. Step 5: Solve for x
    x = 3,350,526,833,441.22/1,992,407.57
  6. Step 6: Final answer
    x = 1,681,647.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.