Home / 628,651.26-867,557.16-342,189.90

Finding the Fourth Proportional to 628,651.26, 867,557.16 and 342,189.90

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Solution

The fourth proportional to 628,651.26, 867,557.16 and 342,189.90 is: 472,232.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,651.26 : 867,557.16 = 342,189.90 : x
  2. Step 2: Convert to fraction form
    628,651.26/867,557.16 = 342,189.90/x
  3. Step 3: Cross multiply
    628,651.26x = 867,557.16 × 342,189.90
  4. Step 4: Simplify right side
    628,651.26x = 296,869,297,824.68
  5. Step 5: Solve for x
    x = 296,869,297,824.68/628,651.26
  6. Step 6: Final answer
    x = 472,232.09

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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.