Home / 669,636.38-1,004,612.52-220,392.56

Finding the Fourth Proportional to 669,636.38, 1,004,612.52 and 220,392.56

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Solution

The fourth proportional to 669,636.38, 1,004,612.52 and 220,392.56 is: 330,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,636.38 : 1,004,612.52 = 220,392.56 : x
  2. Step 2: Convert to fraction form
    669,636.38/1,004,612.52 = 220,392.56/x
  3. Step 3: Cross multiply
    669,636.38x = 1,004,612.52 × 220,392.56
  4. Step 4: Simplify right side
    669,636.38x = 221,409,125,090.85
  5. Step 5: Solve for x
    x = 221,409,125,090.85/669,636.38
  6. Step 6: Final answer
    x = 330,640.82

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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.