Home / 669,906.80-1,004,860.20-404,186.30

Finding the Fourth Proportional to 669,906.80, 1,004,860.20 and 404,186.30

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Solution

The fourth proportional to 669,906.80, 1,004,860.20 and 404,186.30 is: 606,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,906.80 : 1,004,860.20 = 404,186.30 : x
  2. Step 2: Convert to fraction form
    669,906.80/1,004,860.20 = 404,186.30/x
  3. Step 3: Cross multiply
    669,906.80x = 1,004,860.20 × 404,186.30
  4. Step 4: Simplify right side
    669,906.80x = 406,150,726,255.26
  5. Step 5: Solve for x
    x = 406,150,726,255.26/669,906.80
  6. Step 6: Final answer
    x = 606,279.45

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Double scale
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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.