Home / 839,836.11-1,158,260.81-709,651.56

Finding the Fourth Proportional to 839,836.11, 1,158,260.81 and 709,651.56

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Solution

The fourth proportional to 839,836.11, 1,158,260.81 and 709,651.56 is: 978,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,836.11 : 1,158,260.81 = 709,651.56 : x
  2. Step 2: Convert to fraction form
    839,836.11/1,158,260.81 = 709,651.56/x
  3. Step 3: Cross multiply
    839,836.11x = 1,158,260.81 × 709,651.56
  4. Step 4: Simplify right side
    839,836.11x = 821,961,587,155.11
  5. Step 5: Solve for x
    x = 821,961,587,155.11/839,836.11
  6. Step 6: Final answer
    x = 978,716.65

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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.