Home / 1,978,044.19-2,729,760.44-1,118,587.21

Finding the Fourth Proportional to 1,978,044.19, 2,729,760.44 and 1,118,587.21

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Solution

The fourth proportional to 1,978,044.19, 2,729,760.44 and 1,118,587.21 is: 1,543,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,044.19 : 2,729,760.44 = 1,118,587.21 : x
  2. Step 2: Convert to fraction form
    1,978,044.19/2,729,760.44 = 1,118,587.21/x
  3. Step 3: Cross multiply
    1,978,044.19x = 2,729,760.44 × 1,118,587.21
  4. Step 4: Simplify right side
    1,978,044.19x = 3,053,475,114,547.97
  5. Step 5: Solve for x
    x = 3,053,475,114,547.97/1,978,044.19
  6. Step 6: Final answer
    x = 1,543,683.97

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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.