Home / 1,418,881.32-1,954,729.26-988,382.52

Finding the Fourth Proportional to 1,418,881.32, 1,954,729.26 and 988,382.52

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Solution

The fourth proportional to 1,418,881.32, 1,954,729.26 and 988,382.52 is: 1,361,650.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,881.32 : 1,954,729.26 = 988,382.52 : x
  2. Step 2: Convert to fraction form
    1,418,881.32/1,954,729.26 = 988,382.52/x
  3. Step 3: Cross multiply
    1,418,881.32x = 1,954,729.26 × 988,382.52
  4. Step 4: Simplify right side
    1,418,881.32x = 1,932,020,231,916.54
  5. Step 5: Solve for x
    x = 1,932,020,231,916.54/1,418,881.32
  6. Step 6: Final answer
    x = 1,361,650.34

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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.