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Finding the Fourth Proportional to 1,819,802.45, 2,511,375.45 and 1,004,016.80

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Solution

The fourth proportional to 1,819,802.45, 2,511,375.45 and 1,004,016.80 is: 1,385,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,802.45 : 2,511,375.45 = 1,004,016.80 : x
  2. Step 2: Convert to fraction form
    1,819,802.45/2,511,375.45 = 1,004,016.80/x
  3. Step 3: Cross multiply
    1,819,802.45x = 2,511,375.45 × 1,004,016.80
  4. Step 4: Simplify right side
    1,819,802.45x = 2,521,463,142,907.56
  5. Step 5: Solve for x
    x = 2,521,463,142,907.56/1,819,802.45
  6. Step 6: Final answer
    x = 1,385,569.70

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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.