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Finding the Fourth Proportional to 482,852.92, 666,419.50 and 278,867.18

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Solution

The fourth proportional to 482,852.92, 666,419.50 and 278,867.18 is: 384,884.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,852.92 : 666,419.50 = 278,867.18 : x
  2. Step 2: Convert to fraction form
    482,852.92/666,419.50 = 278,867.18/x
  3. Step 3: Cross multiply
    482,852.92x = 666,419.50 × 278,867.18
  4. Step 4: Simplify right side
    482,852.92x = 185,842,524,608.94
  5. Step 5: Solve for x
    x = 185,842,524,608.94/482,852.92
  6. Step 6: Final answer
    x = 384,884.33

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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.