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Finding the Fourth Proportional to 605,320,375.60, 907,980,563.40 and 458,961,524.20

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Solution

The fourth proportional to 605,320,375.60, 907,980,563.40 and 458,961,524.20 is: 688,442,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,320,375.60 : 907,980,563.40 = 458,961,524.20 : x
  2. Step 2: Convert to fraction form
    605,320,375.60/907,980,563.40 = 458,961,524.20/x
  3. Step 3: Cross multiply
    605,320,375.60x = 907,980,563.40 × 458,961,524.20
  4. Step 4: Simplify right side
    605,320,375.60x = 416,728,143,322,038,720
  5. Step 5: Solve for x
    x = 416,728,143,322,038,720/605,320,375.60
  6. Step 6: Final answer
    x = 688,442,286.30

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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.