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Finding the Fourth Proportional to 1,320,994.38, 1,822,972.51 and 804,748.11

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Solution

The fourth proportional to 1,320,994.38, 1,822,972.51 and 804,748.11 is: 1,110,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,994.38 : 1,822,972.51 = 804,748.11 : x
  2. Step 2: Convert to fraction form
    1,320,994.38/1,822,972.51 = 804,748.11/x
  3. Step 3: Cross multiply
    1,320,994.38x = 1,822,972.51 × 804,748.11
  4. Step 4: Simplify right side
    1,320,994.38x = 1,467,033,689,292.22
  5. Step 5: Solve for x
    x = 1,467,033,689,292.22/1,320,994.38
  6. Step 6: Final answer
    x = 1,110,552.56

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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.