Home / 494,719.22-682,712.76-279,854.72

Finding the Fourth Proportional to 494,719.22, 682,712.76 and 279,854.72

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Solution

The fourth proportional to 494,719.22, 682,712.76 and 279,854.72 is: 386,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,719.22 : 682,712.76 = 279,854.72 : x
  2. Step 2: Convert to fraction form
    494,719.22/682,712.76 = 279,854.72/x
  3. Step 3: Cross multiply
    494,719.22x = 682,712.76 × 279,854.72
  4. Step 4: Simplify right side
    494,719.22x = 191,060,388,290.23
  5. Step 5: Solve for x
    x = 191,060,388,290.23/494,719.22
  6. Step 6: Final answer
    x = 386,199.65

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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.