Home / 743,696.64-1,115,372.43-364,238.78

Finding the Fourth Proportional to 743,696.64, 1,115,372.43 and 364,238.78

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Solution

The fourth proportional to 743,696.64, 1,115,372.43 and 364,238.78 is: 546,273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,696.64 : 1,115,372.43 = 364,238.78 : x
  2. Step 2: Convert to fraction form
    743,696.64/1,115,372.43 = 364,238.78/x
  3. Step 3: Cross multiply
    743,696.64x = 1,115,372.43 × 364,238.78
  4. Step 4: Simplify right side
    743,696.64x = 406,261,887,571.97
  5. Step 5: Solve for x
    x = 406,261,887,571.97/743,696.64
  6. Step 6: Final answer
    x = 546,273.66

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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.