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Finding the Fourth Proportional to 610,755.80, 842,843.97 and 338,823.68

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Solution

The fourth proportional to 610,755.80, 842,843.97 and 338,823.68 is: 467,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,755.80 : 842,843.97 = 338,823.68 : x
  2. Step 2: Convert to fraction form
    610,755.80/842,843.97 = 338,823.68/x
  3. Step 3: Cross multiply
    610,755.80x = 842,843.97 × 338,823.68
  4. Step 4: Simplify right side
    610,755.80x = 285,575,491,366.99
  5. Step 5: Solve for x
    x = 285,575,491,366.99/610,755.80
  6. Step 6: Final answer
    x = 467,577.21

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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.