Home / 991,287.45-1,486,932.35-271,635.21

Finding the Fourth Proportional to 991,287.45, 1,486,932.35 and 271,635.21

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Solution

The fourth proportional to 991,287.45, 1,486,932.35 and 271,635.21 is: 407,453.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,287.45 : 1,486,932.35 = 271,635.21 : x
  2. Step 2: Convert to fraction form
    991,287.45/1,486,932.35 = 271,635.21/x
  3. Step 3: Cross multiply
    991,287.45x = 1,486,932.35 × 271,635.21
  4. Step 4: Simplify right side
    991,287.45x = 403,903,179,789.87
  5. Step 5: Solve for x
    x = 403,903,179,789.87/991,287.45
  6. Step 6: Final answer
    x = 407,453.14

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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.