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Finding the Fourth Proportional to 605,958.64, 908,839.52 and 286,109.90

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Solution

The fourth proportional to 605,958.64, 908,839.52 and 286,109.90 is: 429,118.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,958.64 : 908,839.52 = 286,109.90 : x
  2. Step 2: Convert to fraction form
    605,958.64/908,839.52 = 286,109.90/x
  3. Step 3: Cross multiply
    605,958.64x = 908,839.52 × 286,109.90
  4. Step 4: Simplify right side
    605,958.64x = 260,027,984,183.25
  5. Step 5: Solve for x
    x = 260,027,984,183.25/605,958.64
  6. Step 6: Final answer
    x = 429,118.37

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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.