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Finding the Fourth Proportional to 403,372.60, 605,058.90 and 270,662.20

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Solution

The fourth proportional to 403,372.60, 605,058.90 and 270,662.20 is: 405,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,372.60 : 605,058.90 = 270,662.20 : x
  2. Step 2: Convert to fraction form
    403,372.60/605,058.90 = 270,662.20/x
  3. Step 3: Cross multiply
    403,372.60x = 605,058.90 × 270,662.20
  4. Step 4: Simplify right side
    403,372.60x = 163,766,573,003.58
  5. Step 5: Solve for x
    x = 163,766,573,003.58/403,372.60
  6. Step 6: Final answer
    x = 405,993.30

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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.