Home / 1,988,181.05-2,979,746.60-1,028,456.43

Finding the Fourth Proportional to 1,988,181.05, 2,979,746.60 and 1,028,456.43

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Solution

The fourth proportional to 1,988,181.05, 2,979,746.60 and 1,028,456.43 is: 1,541,378.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,181.05 : 2,979,746.60 = 1,028,456.43 : x
  2. Step 2: Convert to fraction form
    1,988,181.05/2,979,746.60 = 1,028,456.43/x
  3. Step 3: Cross multiply
    1,988,181.05x = 2,979,746.60 × 1,028,456.43
  4. Step 4: Simplify right side
    1,988,181.05x = 3,064,539,545,398.36
  5. Step 5: Solve for x
    x = 3,064,539,545,398.36/1,988,181.05
  6. Step 6: Final answer
    x = 1,541,378.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.