Home / 1,418,884.32-1,954,733.40-988,385.52

Finding the Fourth Proportional to 1,418,884.32, 1,954,733.40 and 988,385.52

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Solution

The fourth proportional to 1,418,884.32, 1,954,733.40 and 988,385.52 is: 1,361,654.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,884.32 : 1,954,733.40 = 988,385.52 : x
  2. Step 2: Convert to fraction form
    1,418,884.32/1,954,733.40 = 988,385.52/x
  3. Step 3: Cross multiply
    1,418,884.32x = 1,954,733.40 × 988,385.52
  4. Step 4: Simplify right side
    1,418,884.32x = 1,932,030,188,020.37
  5. Step 5: Solve for x
    x = 1,932,030,188,020.37/1,418,884.32
  6. Step 6: Final answer
    x = 1,361,654.48

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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.