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Finding the Fourth Proportional to 809,956, 1,117,739.32 and 452,260

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Solution

The fourth proportional to 809,956, 1,117,739.32 and 452,260 is: 624,118.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,956 : 1,117,739.32 = 452,260 : x
  2. Step 2: Convert to fraction form
    809,956/1,117,739.32 = 452,260/x
  3. Step 3: Cross multiply
    809,956x = 1,117,739.32 × 452,260
  4. Step 4: Simplify right side
    809,956x = 505,508,784,863.20
  5. Step 5: Solve for x
    x = 505,508,784,863.20/809,956
  6. Step 6: Final answer
    x = 624,118.82

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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.