Home / 661,645.24-992,479.20-188,342.80

Finding the Fourth Proportional to 661,645.24, 992,479.20 and 188,342.80

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Solution

The fourth proportional to 661,645.24, 992,479.20 and 188,342.80 is: 282,517.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,645.24 : 992,479.20 = 188,342.80 : x
  2. Step 2: Convert to fraction form
    661,645.24/992,479.20 = 188,342.80/x
  3. Step 3: Cross multiply
    661,645.24x = 992,479.20 × 188,342.80
  4. Step 4: Simplify right side
    661,645.24x = 186,926,311,469.76
  5. Step 5: Solve for x
    x = 186,926,311,469.76/661,645.24
  6. Step 6: Final answer
    x = 282,517.43

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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.