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Finding the Fourth Proportional to 662,905.96, 914,811.78 and 361,093.48

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Solution

The fourth proportional to 662,905.96, 914,811.78 and 361,093.48 is: 498,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,905.96 : 914,811.78 = 361,093.48 : x
  2. Step 2: Convert to fraction form
    662,905.96/914,811.78 = 361,093.48/x
  3. Step 3: Cross multiply
    662,905.96x = 914,811.78 × 361,093.48
  4. Step 4: Simplify right side
    662,905.96x = 330,332,569,185.19
  5. Step 5: Solve for x
    x = 330,332,569,185.19/662,905.96
  6. Step 6: Final answer
    x = 498,309.85

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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.