Home / 1,412,902.54-1,949,856.78-809,407.18

Finding the Fourth Proportional to 1,412,902.54, 1,949,856.78 and 809,407.18

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Solution

The fourth proportional to 1,412,902.54, 1,949,856.78 and 809,407.18 is: 1,117,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,902.54 : 1,949,856.78 = 809,407.18 : x
  2. Step 2: Convert to fraction form
    1,412,902.54/1,949,856.78 = 809,407.18/x
  3. Step 3: Cross multiply
    1,412,902.54x = 1,949,856.78 × 809,407.18
  4. Step 4: Simplify right side
    1,412,902.54x = 1,578,228,077,703.68
  5. Step 5: Solve for x
    x = 1,578,228,077,703.68/1,412,902.54
  6. Step 6: Final answer
    x = 1,117,011.28

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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.