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Finding the Fourth Proportional to 496,319.76, 685,042.92 and 281,585.52

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Solution

The fourth proportional to 496,319.76, 685,042.92 and 281,585.52 is: 388,657.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,319.76 : 685,042.92 = 281,585.52 : x
  2. Step 2: Convert to fraction form
    496,319.76/685,042.92 = 281,585.52/x
  3. Step 3: Cross multiply
    496,319.76x = 685,042.92 × 281,585.52
  4. Step 4: Simplify right side
    496,319.76x = 192,898,166,850.52
  5. Step 5: Solve for x
    x = 192,898,166,850.52/496,319.76
  6. Step 6: Final answer
    x = 388,657.04

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1.5x scale

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.