Home / 628,489.96-867,334.23-342,028.18

Finding the Fourth Proportional to 628,489.96, 867,334.23 and 342,028.18

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Solution

The fourth proportional to 628,489.96, 867,334.23 and 342,028.18 is: 472,008.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,489.96 : 867,334.23 = 342,028.18 : x
  2. Step 2: Convert to fraction form
    628,489.96/867,334.23 = 342,028.18/x
  3. Step 3: Cross multiply
    628,489.96x = 867,334.23 × 342,028.18
  4. Step 4: Simplify right side
    628,489.96x = 296,652,748,138.60
  5. Step 5: Solve for x
    x = 296,652,748,138.60/628,489.96
  6. Step 6: Final answer
    x = 472,008.73

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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.