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Finding the Fourth Proportional to 605,749.52, 908,449.32 and 206,381.45

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Solution

The fourth proportional to 605,749.52, 908,449.32 and 206,381.45 is: 309,512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,749.52 : 908,449.32 = 206,381.45 : x
  2. Step 2: Convert to fraction form
    605,749.52/908,449.32 = 206,381.45/x
  3. Step 3: Cross multiply
    605,749.52x = 908,449.32 × 206,381.45
  4. Step 4: Simplify right side
    605,749.52x = 187,487,083,370.87
  5. Step 5: Solve for x
    x = 187,487,083,370.87/605,749.52
  6. Step 6: Final answer
    x = 309,512.56

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1.5x scale

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.