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Finding the Fourth Proportional to 605,735.90, 907,619.70 and 505,352.60

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Solution

The fourth proportional to 605,735.90, 907,619.70 and 505,352.60 is: 757,207.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,735.90 : 907,619.70 = 505,352.60 : x
  2. Step 2: Convert to fraction form
    605,735.90/907,619.70 = 505,352.60/x
  3. Step 3: Cross multiply
    605,735.90x = 907,619.70 × 505,352.60
  4. Step 4: Simplify right side
    605,735.90x = 458,667,975,206.22
  5. Step 5: Solve for x
    x = 458,667,975,206.22/605,735.90
  6. Step 6: Final answer
    x = 757,207.84

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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.