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Finding the Fourth Proportional to 605,599.90, 907,415.70 and 505,216.60

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Solution

The fourth proportional to 605,599.90, 907,415.70 and 505,216.60 is: 757,003.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,599.90 : 907,415.70 = 505,216.60 : x
  2. Step 2: Convert to fraction form
    605,599.90/907,415.70 = 505,216.60/x
  3. Step 3: Cross multiply
    605,599.90x = 907,415.70 × 505,216.60
  4. Step 4: Simplify right side
    605,599.90x = 458,441,474,740.62
  5. Step 5: Solve for x
    x = 458,441,474,740.62/605,599.90
  6. Step 6: Final answer
    x = 757,003.88

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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.