Home / 451,619.13-677,429-114,685.05

Finding the Fourth Proportional to 451,619.13, 677,429 and 114,685.05

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Solution

The fourth proportional to 451,619.13, 677,429 and 114,685.05 is: 172,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,619.13 : 677,429 = 114,685.05 : x
  2. Step 2: Convert to fraction form
    451,619.13/677,429 = 114,685.05/x
  3. Step 3: Cross multiply
    451,619.13x = 677,429 × 114,685.05
  4. Step 4: Simplify right side
    451,619.13x = 77,690,978,736.45
  5. Step 5: Solve for x
    x = 77,690,978,736.45/451,619.13
  6. Step 6: Final answer
    x = 172,027.65

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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.