Home / 801,438.61-1,105,985.26-438,884.64

Finding the Fourth Proportional to 801,438.61, 1,105,985.26 and 438,884.64

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Solution

The fourth proportional to 801,438.61, 1,105,985.26 and 438,884.64 is: 605,660.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,438.61 : 1,105,985.26 = 438,884.64 : x
  2. Step 2: Convert to fraction form
    801,438.61/1,105,985.26 = 438,884.64/x
  3. Step 3: Cross multiply
    801,438.61x = 1,105,985.26 × 438,884.64
  4. Step 4: Simplify right side
    801,438.61x = 485,399,942,680.41
  5. Step 5: Solve for x
    x = 485,399,942,680.41/801,438.61
  6. Step 6: Final answer
    x = 605,660.79

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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.