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Finding the Fourth Proportional to 605,265.60, 905,565.60 and 395,313.60

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Solution

The fourth proportional to 605,265.60, 905,565.60 and 395,313.60 is: 591,446.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,265.60 : 905,565.60 = 395,313.60 : x
  2. Step 2: Convert to fraction form
    605,265.60/905,565.60 = 395,313.60/x
  3. Step 3: Cross multiply
    605,265.60x = 905,565.60 × 395,313.60
  4. Step 4: Simplify right side
    605,265.60x = 357,982,397,372.16
  5. Step 5: Solve for x
    x = 357,982,397,372.16/605,265.60
  6. Step 6: Final answer
    x = 591,446.79

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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.