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Finding the Fourth Proportional to 656,446.72, 905,944.26 and 366,077.92

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Solution

The fourth proportional to 656,446.72, 905,944.26 and 366,077.92 is: 505,214.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,446.72 : 905,944.26 = 366,077.92 : x
  2. Step 2: Convert to fraction form
    656,446.72/905,944.26 = 366,077.92/x
  3. Step 3: Cross multiply
    656,446.72x = 905,944.26 × 366,077.92
  4. Step 4: Simplify right side
    656,446.72x = 331,646,190,336.74
  5. Step 5: Solve for x
    x = 331,646,190,336.74/656,446.72
  6. Step 6: Final answer
    x = 505,214.18

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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.