Home / 1,557,192.93-2,148,519.56-912,266.43

Finding the Fourth Proportional to 1,557,192.93, 2,148,519.56 and 912,266.43

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Solution

The fourth proportional to 1,557,192.93, 2,148,519.56 and 912,266.43 is: 1,258,689.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,192.93 : 2,148,519.56 = 912,266.43 : x
  2. Step 2: Convert to fraction form
    1,557,192.93/2,148,519.56 = 912,266.43/x
  3. Step 3: Cross multiply
    1,557,192.93x = 2,148,519.56 × 912,266.43
  4. Step 4: Simplify right side
    1,557,192.93x = 1,960,022,268,786.37
  5. Step 5: Solve for x
    x = 1,960,022,268,786.37/1,557,192.93
  6. Step 6: Final answer
    x = 1,258,689.42

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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.