Home / 378,727.40-522,700.44-242,914.52

Finding the Fourth Proportional to 378,727.40, 522,700.44 and 242,914.52

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Solution

The fourth proportional to 378,727.40, 522,700.44 and 242,914.52 is: 335,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,727.40 : 522,700.44 = 242,914.52 : x
  2. Step 2: Convert to fraction form
    378,727.40/522,700.44 = 242,914.52/x
  3. Step 3: Cross multiply
    378,727.40x = 522,700.44 × 242,914.52
  4. Step 4: Simplify right side
    378,727.40x = 126,971,526,486.39
  5. Step 5: Solve for x
    x = 126,971,526,486.39/378,727.40
  6. Step 6: Final answer
    x = 335,258.36

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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.