Home / 1,418,887.58-1,954,737.88-988,388.78

Finding the Fourth Proportional to 1,418,887.58, 1,954,737.88 and 988,388.78

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Solution

The fourth proportional to 1,418,887.58, 1,954,737.88 and 988,388.78 is: 1,361,658.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,887.58 : 1,954,737.88 = 988,388.78 : x
  2. Step 2: Convert to fraction form
    1,418,887.58/1,954,737.88 = 988,388.78/x
  3. Step 3: Cross multiply
    1,418,887.58x = 1,954,737.88 × 988,388.78
  4. Step 4: Simplify right side
    1,418,887.58x = 1,932,040,988,432.99
  5. Step 5: Solve for x
    x = 1,932,040,988,432.99/1,418,887.58
  6. Step 6: Final answer
    x = 1,361,658.96

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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.