Home / 839,863.80-1,259,795.70-807,204.60

Finding the Fourth Proportional to 839,863.80, 1,259,795.70 and 807,204.60

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Solution

The fourth proportional to 839,863.80, 1,259,795.70 and 807,204.60 is: 1,210,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,863.80 : 1,259,795.70 = 807,204.60 : x
  2. Step 2: Convert to fraction form
    839,863.80/1,259,795.70 = 807,204.60/x
  3. Step 3: Cross multiply
    839,863.80x = 1,259,795.70 × 807,204.60
  4. Step 4: Simplify right side
    839,863.80x = 1,016,912,884,100.22
  5. Step 5: Solve for x
    x = 1,016,912,884,100.22/839,863.80
  6. Step 6: Final answer
    x = 1,210,806.90

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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.