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Finding the Fourth Proportional to 804,387.88, 1,206,737.34 and 305,713

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Solution

The fourth proportional to 804,387.88, 1,206,737.34 and 305,713 is: 458,628.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,387.88 : 1,206,737.34 = 305,713 : x
  2. Step 2: Convert to fraction form
    804,387.88/1,206,737.34 = 305,713/x
  3. Step 3: Cross multiply
    804,387.88x = 1,206,737.34 × 305,713
  4. Step 4: Simplify right side
    804,387.88x = 368,915,292,423.42
  5. Step 5: Solve for x
    x = 368,915,292,423.42/804,387.88
  6. Step 6: Final answer
    x = 458,628.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.