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Finding the Fourth Proportional to 606,625.60, 910,687.20 and 381,985.60

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Solution

The fourth proportional to 606,625.60, 910,687.20 and 381,985.60 is: 573,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,625.60 : 910,687.20 = 381,985.60 : x
  2. Step 2: Convert to fraction form
    606,625.60/910,687.20 = 381,985.60/x
  3. Step 3: Cross multiply
    606,625.60x = 910,687.20 × 381,985.60
  4. Step 4: Simplify right side
    606,625.60x = 347,869,396,504.32
  5. Step 5: Solve for x
    x = 347,869,396,504.32/606,625.60
  6. Step 6: Final answer
    x = 573,449.91

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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.