Home / 670,425.20-1,005,668.79-221,185.33

Finding the Fourth Proportional to 670,425.20, 1,005,668.79 and 221,185.33

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Solution

The fourth proportional to 670,425.20, 1,005,668.79 and 221,185.33 is: 331,788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,425.20 : 1,005,668.79 = 221,185.33 : x
  2. Step 2: Convert to fraction form
    670,425.20/1,005,668.79 = 221,185.33/x
  3. Step 3: Cross multiply
    670,425.20x = 1,005,668.79 × 221,185.33
  4. Step 4: Simplify right side
    670,425.20x = 222,439,186,122.20
  5. Step 5: Solve for x
    x = 222,439,186,122.20/670,425.20
  6. Step 6: Final answer
    x = 331,788.22

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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.