Home / 942,805.20-1,297,785.06-821,736.12

Finding the Fourth Proportional to 942,805.20, 1,297,785.06 and 821,736.12

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Solution

The fourth proportional to 942,805.20, 1,297,785.06 and 821,736.12 is: 1,131,131.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,805.20 : 1,297,785.06 = 821,736.12 : x
  2. Step 2: Convert to fraction form
    942,805.20/1,297,785.06 = 821,736.12/x
  3. Step 3: Cross multiply
    942,805.20x = 1,297,785.06 × 821,736.12
  4. Step 4: Simplify right side
    942,805.20x = 1,066,436,859,798.37
  5. Step 5: Solve for x
    x = 1,066,436,859,798.37/942,805.20
  6. Step 6: Final answer
    x = 1,131,131.71

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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.