Home / 1,193,354.50-1,791,187.79-1,128,546.20

Finding the Fourth Proportional to 1,193,354.50, 1,791,187.79 and 1,128,546.20

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Solution

The fourth proportional to 1,193,354.50, 1,791,187.79 and 1,128,546.20 is: 1,693,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193,354.50 : 1,791,187.79 = 1,128,546.20 : x
  2. Step 2: Convert to fraction form
    1,193,354.50/1,791,187.79 = 1,128,546.20/x
  3. Step 3: Cross multiply
    1,193,354.50x = 1,791,187.79 × 1,128,546.20
  4. Step 4: Simplify right side
    1,193,354.50x = 2,021,438,181,374.67
  5. Step 5: Solve for x
    x = 2,021,438,181,374.67/1,193,354.50
  6. Step 6: Final answer
    x = 1,693,912.57

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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.