Home / 669,412.38-1,004,150.85-220,123.31

Finding the Fourth Proportional to 669,412.38, 1,004,150.85 and 220,123.31

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Solution

The fourth proportional to 669,412.38, 1,004,150.85 and 220,123.31 is: 330,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,412.38 : 1,004,150.85 = 220,123.31 : x
  2. Step 2: Convert to fraction form
    669,412.38/1,004,150.85 = 220,123.31/x
  3. Step 3: Cross multiply
    669,412.38x = 1,004,150.85 × 220,123.31
  4. Step 4: Simplify right side
    669,412.38x = 221,037,003,820.56
  5. Step 5: Solve for x
    x = 221,037,003,820.56/669,412.38
  6. Step 6: Final answer
    x = 330,195.57

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Double scale
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1.5x scale

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.