Home / 686,446.73-1,029,659.04-213,132.54

Finding the Fourth Proportional to 686,446.73, 1,029,659.04 and 213,132.54

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Solution

The fourth proportional to 686,446.73, 1,029,659.04 and 213,132.54 is: 319,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,446.73 : 1,029,659.04 = 213,132.54 : x
  2. Step 2: Convert to fraction form
    686,446.73/1,029,659.04 = 213,132.54/x
  3. Step 3: Cross multiply
    686,446.73x = 1,029,659.04 × 213,132.54
  4. Step 4: Simplify right side
    686,446.73x = 219,453,846,529.16
  5. Step 5: Solve for x
    x = 219,453,846,529.16/686,446.73
  6. Step 6: Final answer
    x = 319,695.38

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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.