Home / 628,490.20-867,334.56-342,028.44

Finding the Fourth Proportional to 628,490.20, 867,334.56 and 342,028.44

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Solution

The fourth proportional to 628,490.20, 867,334.56 and 342,028.44 is: 472,009.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,490.20 : 867,334.56 = 342,028.44 : x
  2. Step 2: Convert to fraction form
    628,490.20/867,334.56 = 342,028.44/x
  3. Step 3: Cross multiply
    628,490.20x = 867,334.56 × 342,028.44
  4. Step 4: Simplify right side
    628,490.20x = 296,653,086,514.89
  5. Step 5: Solve for x
    x = 296,653,086,514.89/628,490.20
  6. Step 6: Final answer
    x = 472,009.09

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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.