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Finding the Fourth Proportional to 486,260.51, 728,891.94 and 186,660.41

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Solution

The fourth proportional to 486,260.51, 728,891.94 and 186,660.41 is: 279,799.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,260.51 : 728,891.94 = 186,660.41 : x
  2. Step 2: Convert to fraction form
    486,260.51/728,891.94 = 186,660.41/x
  3. Step 3: Cross multiply
    486,260.51x = 728,891.94 × 186,660.41
  4. Step 4: Simplify right side
    486,260.51x = 136,055,268,366.10
  5. Step 5: Solve for x
    x = 136,055,268,366.10/486,260.51
  6. Step 6: Final answer
    x = 279,799.13

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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.