Home / 685,209.38-1,027,828.17-211,894.58

Finding the Fourth Proportional to 685,209.38, 1,027,828.17 and 211,894.58

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Solution

The fourth proportional to 685,209.38, 1,027,828.17 and 211,894.58 is: 317,846.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,209.38 : 1,027,828.17 = 211,894.58 : x
  2. Step 2: Convert to fraction form
    685,209.38/1,027,828.17 = 211,894.58/x
  3. Step 3: Cross multiply
    685,209.38x = 1,027,828.17 × 211,894.58
  4. Step 4: Simplify right side
    685,209.38x = 217,791,220,963.89
  5. Step 5: Solve for x
    x = 217,791,220,963.89/685,209.38
  6. Step 6: Final answer
    x = 317,846.24

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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.