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Finding the Fourth Proportional to 662,917.95, 914,826.84 and 361,111.95

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Solution

The fourth proportional to 662,917.95, 914,826.84 and 361,111.95 is: 498,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,917.95 : 914,826.84 = 361,111.95 : x
  2. Step 2: Convert to fraction form
    662,917.95/914,826.84 = 361,111.95/x
  3. Step 3: Cross multiply
    662,917.95x = 914,826.84 × 361,111.95
  4. Step 4: Simplify right side
    662,917.95x = 330,354,904,104.74
  5. Step 5: Solve for x
    x = 330,354,904,104.74/662,917.95
  6. Step 6: Final answer
    x = 498,334.53

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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.