Home / 806,727.80-1,210,091.70-769,986.20

Finding the Fourth Proportional to 806,727.80, 1,210,091.70 and 769,986.20

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Solution

The fourth proportional to 806,727.80, 1,210,091.70 and 769,986.20 is: 1,154,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,727.80 : 1,210,091.70 = 769,986.20 : x
  2. Step 2: Convert to fraction form
    806,727.80/1,210,091.70 = 769,986.20/x
  3. Step 3: Cross multiply
    806,727.80x = 1,210,091.70 × 769,986.20
  4. Step 4: Simplify right side
    806,727.80x = 931,753,909,734.54
  5. Step 5: Solve for x
    x = 931,753,909,734.54/806,727.80
  6. Step 6: Final answer
    x = 1,154,979.30

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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.