Home / 458,620.11-687,228.80-192,235.41

Finding the Fourth Proportional to 458,620.11, 687,228.80 and 192,235.41

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Solution

The fourth proportional to 458,620.11, 687,228.80 and 192,235.41 is: 288,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,620.11 : 687,228.80 = 192,235.41 : x
  2. Step 2: Convert to fraction form
    458,620.11/687,228.80 = 192,235.41/x
  3. Step 3: Cross multiply
    458,620.11x = 687,228.80 × 192,235.41
  4. Step 4: Simplify right side
    458,620.11x = 132,109,709,170.63
  5. Step 5: Solve for x
    x = 132,109,709,170.63/458,620.11
  6. Step 6: Final answer
    x = 288,059.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.