Home / 817,135.11-1,225,627.47-218,074.77

Finding the Fourth Proportional to 817,135.11, 1,225,627.47 and 218,074.77

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Solution

The fourth proportional to 817,135.11, 1,225,627.47 and 218,074.77 is: 327,092.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,135.11 : 1,225,627.47 = 218,074.77 : x
  2. Step 2: Convert to fraction form
    817,135.11/1,225,627.47 = 218,074.77/x
  3. Step 3: Cross multiply
    817,135.11x = 1,225,627.47 × 218,074.77
  4. Step 4: Simplify right side
    817,135.11x = 267,278,428,625.93
  5. Step 5: Solve for x
    x = 267,278,428,625.93/817,135.11
  6. Step 6: Final answer
    x = 327,092.09

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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.