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Finding the Fourth Proportional to 496,640.94, 685,367.55 and 270,288.78

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Solution

The fourth proportional to 496,640.94, 685,367.55 and 270,288.78 is: 373,000.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,640.94 : 685,367.55 = 270,288.78 : x
  2. Step 2: Convert to fraction form
    496,640.94/685,367.55 = 270,288.78/x
  3. Step 3: Cross multiply
    496,640.94x = 685,367.55 × 270,288.78
  4. Step 4: Simplify right side
    496,640.94x = 185,247,158,941.09
  5. Step 5: Solve for x
    x = 185,247,158,941.09/496,640.94
  6. Step 6: Final answer
    x = 373,000.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.