Home / 628,438.75-867,238.19-341,953.90

Finding the Fourth Proportional to 628,438.75, 867,238.19 and 341,953.90

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Solution

The fourth proportional to 628,438.75, 867,238.19 and 341,953.90 is: 471,892.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,438.75 : 867,238.19 = 341,953.90 : x
  2. Step 2: Convert to fraction form
    628,438.75/867,238.19 = 341,953.90/x
  3. Step 3: Cross multiply
    628,438.75x = 867,238.19 × 341,953.90
  4. Step 4: Simplify right side
    628,438.75x = 296,555,479,589.67
  5. Step 5: Solve for x
    x = 296,555,479,589.67/628,438.75
  6. Step 6: Final answer
    x = 471,892.42

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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.