Home / 1,418,886.58-1,954,736.50-988,387.78

Finding the Fourth Proportional to 1,418,886.58, 1,954,736.50 and 988,387.78

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Solution

The fourth proportional to 1,418,886.58, 1,954,736.50 and 988,387.78 is: 1,361,657.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,886.58 : 1,954,736.50 = 988,387.78 : x
  2. Step 2: Convert to fraction form
    1,418,886.58/1,954,736.50 = 988,387.78/x
  3. Step 3: Cross multiply
    1,418,886.58x = 1,954,736.50 × 988,387.78
  4. Step 4: Simplify right side
    1,418,886.58x = 1,932,037,669,719.97
  5. Step 5: Solve for x
    x = 1,932,037,669,719.97/1,418,886.58
  6. Step 6: Final answer
    x = 1,361,657.58

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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.