Home / 1,086,382.71-1,629,636.30-287,643.51

Finding the Fourth Proportional to 1,086,382.71, 1,629,636.30 and 287,643.51

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Solution

The fourth proportional to 1,086,382.71, 1,629,636.30 and 287,643.51 is: 431,481.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,382.71 : 1,629,636.30 = 287,643.51 : x
  2. Step 2: Convert to fraction form
    1,086,382.71/1,629,636.30 = 287,643.51/x
  3. Step 3: Cross multiply
    1,086,382.71x = 1,629,636.30 × 287,643.51
  4. Step 4: Simplify right side
    1,086,382.71x = 468,754,305,355.41
  5. Step 5: Solve for x
    x = 468,754,305,355.41/1,086,382.71
  6. Step 6: Final answer
    x = 431,481.74

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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.