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Finding the Fourth Proportional to 404,655.60, 606,983.40 and 329,860.20

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Solution

The fourth proportional to 404,655.60, 606,983.40 and 329,860.20 is: 494,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,655.60 : 606,983.40 = 329,860.20 : x
  2. Step 2: Convert to fraction form
    404,655.60/606,983.40 = 329,860.20/x
  3. Step 3: Cross multiply
    404,655.60x = 606,983.40 × 329,860.20
  4. Step 4: Simplify right side
    404,655.60x = 200,219,665,720.68
  5. Step 5: Solve for x
    x = 200,219,665,720.68/404,655.60
  6. Step 6: Final answer
    x = 494,790.30

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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.