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Finding the Fourth Proportional to 664,404.30, 995,418.45 and 404,268.30

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Solution

The fourth proportional to 664,404.30, 995,418.45 and 404,268.30 is: 605,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,404.30 : 995,418.45 = 404,268.30 : x
  2. Step 2: Convert to fraction form
    664,404.30/995,418.45 = 404,268.30/x
  3. Step 3: Cross multiply
    664,404.30x = 995,418.45 × 404,268.30
  4. Step 4: Simplify right side
    664,404.30x = 402,416,124,570.14
  5. Step 5: Solve for x
    x = 402,416,124,570.14/664,404.30
  6. Step 6: Final answer
    x = 605,679.59

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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.