Home / 691,078.52-1,036,620.11-211,304.52

Finding the Fourth Proportional to 691,078.52, 1,036,620.11 and 211,304.52

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Solution

The fourth proportional to 691,078.52, 1,036,620.11 and 211,304.52 is: 316,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,078.52 : 1,036,620.11 = 211,304.52 : x
  2. Step 2: Convert to fraction form
    691,078.52/1,036,620.11 = 211,304.52/x
  3. Step 3: Cross multiply
    691,078.52x = 1,036,620.11 × 211,304.52
  4. Step 4: Simplify right side
    691,078.52x = 219,042,513,709.38
  5. Step 5: Solve for x
    x = 219,042,513,709.38/691,078.52
  6. Step 6: Final answer
    x = 316,957.49

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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.