Home / 458,976.66-688,734.45-192,716.70

Finding the Fourth Proportional to 458,976.66, 688,734.45 and 192,716.70

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Solution

The fourth proportional to 458,976.66, 688,734.45 and 192,716.70 is: 289,188.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,976.66 : 688,734.45 = 192,716.70 : x
  2. Step 2: Convert to fraction form
    458,976.66/688,734.45 = 192,716.70/x
  3. Step 3: Cross multiply
    458,976.66x = 688,734.45 × 192,716.70
  4. Step 4: Simplify right side
    458,976.66x = 132,730,630,380.32
  5. Step 5: Solve for x
    x = 132,730,630,380.32/458,976.66
  6. Step 6: Final answer
    x = 289,188.19

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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.