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Finding the Fourth Proportional to 617,224.23, 851,729.45 and 345,245.49

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Solution

The fourth proportional to 617,224.23, 851,729.45 and 345,245.49 is: 476,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,224.23 : 851,729.45 = 345,245.49 : x
  2. Step 2: Convert to fraction form
    617,224.23/851,729.45 = 345,245.49/x
  3. Step 3: Cross multiply
    617,224.23x = 851,729.45 × 345,245.49
  4. Step 4: Simplify right side
    617,224.23x = 294,055,749,586.45
  5. Step 5: Solve for x
    x = 294,055,749,586.45/617,224.23
  6. Step 6: Final answer
    x = 476,416.41

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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.