Home / 1,188,961.50-1,640,746.18-723,647.18

Finding the Fourth Proportional to 1,188,961.50, 1,640,746.18 and 723,647.18

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Solution

The fourth proportional to 1,188,961.50, 1,640,746.18 and 723,647.18 is: 998,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,961.50 : 1,640,746.18 = 723,647.18 : x
  2. Step 2: Convert to fraction form
    1,188,961.50/1,640,746.18 = 723,647.18/x
  3. Step 3: Cross multiply
    1,188,961.50x = 1,640,746.18 × 723,647.18
  4. Step 4: Simplify right side
    1,188,961.50x = 1,187,321,345,627.01
  5. Step 5: Solve for x
    x = 1,187,321,345,627.01/1,188,961.50
  6. Step 6: Final answer
    x = 998,620.51

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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.