Home / 484,122.45-667,816.29-290,480.07

Finding the Fourth Proportional to 484,122.45, 667,816.29 and 290,480.07

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Solution

The fourth proportional to 484,122.45, 667,816.29 and 290,480.07 is: 400,698.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,122.45 : 667,816.29 = 290,480.07 : x
  2. Step 2: Convert to fraction form
    484,122.45/667,816.29 = 290,480.07/x
  3. Step 3: Cross multiply
    484,122.45x = 667,816.29 × 290,480.07
  4. Step 4: Simplify right side
    484,122.45x = 193,987,322,666.34
  5. Step 5: Solve for x
    x = 193,987,322,666.34/484,122.45
  6. Step 6: Final answer
    x = 400,698.88

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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.