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Finding the Fourth Proportional to 662,933.12, 914,842.92 and 361,127.12

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Solution

The fourth proportional to 662,933.12, 914,842.92 and 361,127.12 is: 498,352.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,933.12 : 914,842.92 = 361,127.12 : x
  2. Step 2: Convert to fraction form
    662,933.12/914,842.92 = 361,127.12/x
  3. Step 3: Cross multiply
    662,933.12x = 914,842.92 × 361,127.12
  4. Step 4: Simplify right side
    662,933.12x = 330,374,588,951.99
  5. Step 5: Solve for x
    x = 330,374,588,951.99/662,933.12
  6. Step 6: Final answer
    x = 498,352.82

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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.