Home / 669,968.70-1,004,661.45-220,515.90

Finding the Fourth Proportional to 669,968.70, 1,004,661.45 and 220,515.90

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Solution

The fourth proportional to 669,968.70, 1,004,661.45 and 220,515.90 is: 330,677.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,968.70 : 1,004,661.45 = 220,515.90 : x
  2. Step 2: Convert to fraction form
    669,968.70/1,004,661.45 = 220,515.90/x
  3. Step 3: Cross multiply
    669,968.70x = 1,004,661.45 × 220,515.90
  4. Step 4: Simplify right side
    669,968.70x = 221,543,823,842.06
  5. Step 5: Solve for x
    x = 221,543,823,842.06/669,968.70
  6. Step 6: Final answer
    x = 330,677.87

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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.