Home / 669,424.60-1,004,136.90-404,003.80

Finding the Fourth Proportional to 669,424.60, 1,004,136.90 and 404,003.80

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Solution

The fourth proportional to 669,424.60, 1,004,136.90 and 404,003.80 is: 606,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,424.60 : 1,004,136.90 = 404,003.80 : x
  2. Step 2: Convert to fraction form
    669,424.60/1,004,136.90 = 404,003.80/x
  3. Step 3: Cross multiply
    669,424.60x = 1,004,136.90 × 404,003.80
  4. Step 4: Simplify right side
    669,424.60x = 405,675,123,320.22
  5. Step 5: Solve for x
    x = 405,675,123,320.22/669,424.60
  6. Step 6: Final answer
    x = 606,005.70

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Similar ratio
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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.