Home / 1,412,992.50-1,949,929.65-809,419.38

Finding the Fourth Proportional to 1,412,992.50, 1,949,929.65 and 809,419.38

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Solution

The fourth proportional to 1,412,992.50, 1,949,929.65 and 809,419.38 is: 1,116,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,992.50 : 1,949,929.65 = 809,419.38 : x
  2. Step 2: Convert to fraction form
    1,412,992.50/1,949,929.65 = 809,419.38/x
  3. Step 3: Cross multiply
    1,412,992.50x = 1,949,929.65 × 809,419.38
  4. Step 4: Simplify right side
    1,412,992.50x = 1,578,310,848,346.62
  5. Step 5: Solve for x
    x = 1,578,310,848,346.62/1,412,992.50
  6. Step 6: Final answer
    x = 1,116,998.74

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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.