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Finding the Fourth Proportional to 809,226, 1,116,731.88 and 451,530

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Solution

The fourth proportional to 809,226, 1,116,731.88 and 451,530 is: 623,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,226 : 1,116,731.88 = 451,530 : x
  2. Step 2: Convert to fraction form
    809,226/1,116,731.88 = 451,530/x
  3. Step 3: Cross multiply
    809,226x = 1,116,731.88 × 451,530
  4. Step 4: Simplify right side
    809,226x = 504,237,945,776.40
  5. Step 5: Solve for x
    x = 504,237,945,776.40/809,226
  6. Step 6: Final answer
    x = 623,111.40

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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.