Home / 1,540,428.87-2,125,628.31-851,991.33

Finding the Fourth Proportional to 1,540,428.87, 2,125,628.31 and 851,991.33

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Solution

The fourth proportional to 1,540,428.87, 2,125,628.31 and 851,991.33 is: 1,175,657.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,428.87 : 2,125,628.31 = 851,991.33 : x
  2. Step 2: Convert to fraction form
    1,540,428.87/2,125,628.31 = 851,991.33/x
  3. Step 3: Cross multiply
    1,540,428.87x = 2,125,628.31 × 851,991.33
  4. Step 4: Simplify right side
    1,540,428.87x = 1,811,016,890,922.55
  5. Step 5: Solve for x
    x = 1,811,016,890,922.55/1,540,428.87
  6. Step 6: Final answer
    x = 1,175,657.59

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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.