Home / 1,276,606.80-1,914,910.20-878,475.60

Finding the Fourth Proportional to 1,276,606.80, 1,914,910.20 and 878,475.60

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Solution

The fourth proportional to 1,276,606.80, 1,914,910.20 and 878,475.60 is: 1,317,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,606.80 : 1,914,910.20 = 878,475.60 : x
  2. Step 2: Convert to fraction form
    1,276,606.80/1,914,910.20 = 878,475.60/x
  3. Step 3: Cross multiply
    1,276,606.80x = 1,914,910.20 × 878,475.60
  4. Step 4: Simplify right side
    1,276,606.80x = 1,682,201,886,891.12
  5. Step 5: Solve for x
    x = 1,682,201,886,891.12/1,276,606.80
  6. Step 6: Final answer
    x = 1,317,713.40

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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.