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Finding the Fourth Proportional to 404,634.40, 605,785.20 and 404,634.40

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Solution

The fourth proportional to 404,634.40, 605,785.20 and 404,634.40 is: 605,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,634.40 : 605,785.20 = 404,634.40 : x
  2. Step 2: Convert to fraction form
    404,634.40/605,785.20 = 404,634.40/x
  3. Step 3: Cross multiply
    404,634.40x = 605,785.20 × 404,634.40
  4. Step 4: Simplify right side
    404,634.40x = 245,121,530,930.88
  5. Step 5: Solve for x
    x = 245,121,530,930.88/404,634.40
  6. Step 6: Final answer
    x = 605,785.20

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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.