Home / 1,557,384-2,149,190.40-841,992

Finding the Fourth Proportional to 1,557,384, 2,149,190.40 and 841,992

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Solution

The fourth proportional to 1,557,384, 2,149,190.40 and 841,992 is: 1,161,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,384 : 2,149,190.40 = 841,992 : x
  2. Step 2: Convert to fraction form
    1,557,384/2,149,190.40 = 841,992/x
  3. Step 3: Cross multiply
    1,557,384x = 2,149,190.40 × 841,992
  4. Step 4: Simplify right side
    1,557,384x = 1,809,601,123,276.80
  5. Step 5: Solve for x
    x = 1,809,601,123,276.80/1,557,384
  6. Step 6: Final answer
    x = 1,161,949.22

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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.