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Finding the Fourth Proportional to 613,008.24, 919,517.48 and 213,648.36

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Solution

The fourth proportional to 613,008.24, 919,517.48 and 213,648.36 is: 320,474.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,008.24 : 919,517.48 = 213,648.36 : x
  2. Step 2: Convert to fraction form
    613,008.24/919,517.48 = 213,648.36/x
  3. Step 3: Cross multiply
    613,008.24x = 919,517.48 × 213,648.36
  4. Step 4: Simplify right side
    613,008.24x = 196,453,400,525.09
  5. Step 5: Solve for x
    x = 196,453,400,525.09/613,008.24
  6. Step 6: Final answer
    x = 320,474.32

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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.