Home / 812,361.16-1,121,093.42-449,785.01

Finding the Fourth Proportional to 812,361.16, 1,121,093.42 and 449,785.01

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Solution

The fourth proportional to 812,361.16, 1,121,093.42 and 449,785.01 is: 620,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,361.16 : 1,121,093.42 = 449,785.01 : x
  2. Step 2: Convert to fraction form
    812,361.16/1,121,093.42 = 449,785.01/x
  3. Step 3: Cross multiply
    812,361.16x = 1,121,093.42 × 449,785.01
  4. Step 4: Simplify right side
    812,361.16x = 504,251,015,125.63
  5. Step 5: Solve for x
    x = 504,251,015,125.63/812,361.16
  6. Step 6: Final answer
    x = 620,722.70

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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.