Home / 1,802,891.31-2,487,891.42-986,937.12

Finding the Fourth Proportional to 1,802,891.31, 2,487,891.42 and 986,937.12

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Solution

The fourth proportional to 1,802,891.31, 2,487,891.42 and 986,937.12 is: 1,361,919.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802,891.31 : 2,487,891.42 = 986,937.12 : x
  2. Step 2: Convert to fraction form
    1,802,891.31/2,487,891.42 = 986,937.12/x
  3. Step 3: Cross multiply
    1,802,891.31x = 2,487,891.42 × 986,937.12
  4. Step 4: Simplify right side
    1,802,891.31x = 2,455,392,392,927.51
  5. Step 5: Solve for x
    x = 2,455,392,392,927.51/1,802,891.31
  6. Step 6: Final answer
    x = 1,361,919.26

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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.