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Finding the Fourth Proportional to 404,924.40, 558,801 and 223,635.78

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Solution

The fourth proportional to 404,924.40, 558,801 and 223,635.78 is: 308,620.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,924.40 : 558,801 = 223,635.78 : x
  2. Step 2: Convert to fraction form
    404,924.40/558,801 = 223,635.78/x
  3. Step 3: Cross multiply
    404,924.40x = 558,801 × 223,635.78
  4. Step 4: Simplify right side
    404,924.40x = 124,967,897,499.78
  5. Step 5: Solve for x
    x = 124,967,897,499.78/404,924.40
  6. Step 6: Final answer
    x = 308,620.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.