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Finding the Fourth Proportional to 858,090.64, 1,179,966 and 744,716.56

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Solution

The fourth proportional to 858,090.64, 1,179,966 and 744,716.56 is: 1,024,064.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,090.64 : 1,179,966 = 744,716.56 : x
  2. Step 2: Convert to fraction form
    858,090.64/1,179,966 = 744,716.56/x
  3. Step 3: Cross multiply
    858,090.64x = 1,179,966 × 744,716.56
  4. Step 4: Simplify right side
    858,090.64x = 878,740,220,436.96
  5. Step 5: Solve for x
    x = 878,740,220,436.96/858,090.64
  6. Step 6: Final answer
    x = 1,024,064.57

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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.