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Finding the Fourth Proportional to 617,229.47, 851,742.34 and 345,244.88

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Solution

The fourth proportional to 617,229.47, 851,742.34 and 345,244.88 is: 476,418.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,229.47 : 851,742.34 = 345,244.88 : x
  2. Step 2: Convert to fraction form
    617,229.47/851,742.34 = 345,244.88/x
  3. Step 3: Cross multiply
    617,229.47x = 851,742.34 × 345,244.88
  4. Step 4: Simplify right side
    617,229.47x = 294,059,683,230.46
  5. Step 5: Solve for x
    x = 294,059,683,230.46/617,229.47
  6. Step 6: Final answer
    x = 476,418.74

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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.