Home / 628,553.25-867,386.85-342,067.20

Finding the Fourth Proportional to 628,553.25, 867,386.85 and 342,067.20

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Solution

The fourth proportional to 628,553.25, 867,386.85 and 342,067.20 is: 472,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,553.25 : 867,386.85 = 342,067.20 : x
  2. Step 2: Convert to fraction form
    628,553.25/867,386.85 = 342,067.20/x
  3. Step 3: Cross multiply
    628,553.25x = 867,386.85 × 342,067.20
  4. Step 4: Simplify right side
    628,553.25x = 296,704,591,096.32
  5. Step 5: Solve for x
    x = 296,704,591,096.32/628,553.25
  6. Step 6: Final answer
    x = 472,043.68

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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.