Home / 628,286.78-867,046.11-341,807.06

Finding the Fourth Proportional to 628,286.78, 867,046.11 and 341,807.06

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Solution

The fourth proportional to 628,286.78, 867,046.11 and 341,807.06 is: 471,699.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,286.78 : 867,046.11 = 341,807.06 : x
  2. Step 2: Convert to fraction form
    628,286.78/867,046.11 = 341,807.06/x
  3. Step 3: Cross multiply
    628,286.78x = 867,046.11 × 341,807.06
  4. Step 4: Simplify right side
    628,286.78x = 296,362,481,743.54
  5. Step 5: Solve for x
    x = 296,362,481,743.54/628,286.78
  6. Step 6: Final answer
    x = 471,699.38

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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.