Home / 1,111,255.40-1,666,883.10-1,093,540.70

Finding the Fourth Proportional to 1,111,255.40, 1,666,883.10 and 1,093,540.70

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Solution

The fourth proportional to 1,111,255.40, 1,666,883.10 and 1,093,540.70 is: 1,640,311.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,255.40 : 1,666,883.10 = 1,093,540.70 : x
  2. Step 2: Convert to fraction form
    1,111,255.40/1,666,883.10 = 1,093,540.70/x
  3. Step 3: Cross multiply
    1,111,255.40x = 1,666,883.10 × 1,093,540.70
  4. Step 4: Simplify right side
    1,111,255.40x = 1,822,804,511,992.17
  5. Step 5: Solve for x
    x = 1,822,804,511,992.17/1,111,255.40
  6. Step 6: Final answer
    x = 1,640,311.05

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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.