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Finding the Fourth Proportional to 613,058.88, 919,674.60 and 213,642.24

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Solution

The fourth proportional to 613,058.88, 919,674.60 and 213,642.24 is: 320,493.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,058.88 : 919,674.60 = 213,642.24 : x
  2. Step 2: Convert to fraction form
    613,058.88/919,674.60 = 213,642.24/x
  3. Step 3: Cross multiply
    613,058.88x = 919,674.60 × 213,642.24
  4. Step 4: Simplify right side
    613,058.88x = 196,481,341,615.10
  5. Step 5: Solve for x
    x = 196,481,341,615.10/613,058.88
  6. Step 6: Final answer
    x = 320,493.43

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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.