Home / 491,777.64-678,674.01-273,986.13

Finding the Fourth Proportional to 491,777.64, 678,674.01 and 273,986.13

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Solution

The fourth proportional to 491,777.64, 678,674.01 and 273,986.13 is: 378,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,777.64 : 678,674.01 = 273,986.13 : x
  2. Step 2: Convert to fraction form
    491,777.64/678,674.01 = 273,986.13/x
  3. Step 3: Cross multiply
    491,777.64x = 678,674.01 × 273,986.13
  4. Step 4: Simplify right side
    491,777.64x = 185,947,265,531.48
  5. Step 5: Solve for x
    x = 185,947,265,531.48/491,777.64
  6. Step 6: Final answer
    x = 378,112.49

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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.