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Finding the Fourth Proportional to 804,312.72, 1,206,468 and 205,273.80

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Solution

The fourth proportional to 804,312.72, 1,206,468 and 205,273.80 is: 307,910.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,312.72 : 1,206,468 = 205,273.80 : x
  2. Step 2: Convert to fraction form
    804,312.72/1,206,468 = 205,273.80/x
  3. Step 3: Cross multiply
    804,312.72x = 1,206,468 × 205,273.80
  4. Step 4: Simplify right side
    804,312.72x = 247,656,270,938.40
  5. Step 5: Solve for x
    x = 247,656,270,938.40/804,312.72
  6. Step 6: Final answer
    x = 307,910.42

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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.