Home / 687,174.39-948,268.67-381,247.52

Finding the Fourth Proportional to 687,174.39, 948,268.67 and 381,247.52

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Solution

The fourth proportional to 687,174.39, 948,268.67 and 381,247.52 is: 526,103.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,174.39 : 948,268.67 = 381,247.52 : x
  2. Step 2: Convert to fraction form
    687,174.39/948,268.67 = 381,247.52/x
  3. Step 3: Cross multiply
    687,174.39x = 948,268.67 × 381,247.52
  4. Step 4: Simplify right side
    687,174.39x = 361,525,072,083.62
  5. Step 5: Solve for x
    x = 361,525,072,083.62/687,174.39
  6. Step 6: Final answer
    x = 526,103.82

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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.