Home / 839,921.20-1,258,132.20-699,953.20

Finding the Fourth Proportional to 839,921.20, 1,258,132.20 and 699,953.20

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Solution

The fourth proportional to 839,921.20, 1,258,132.20 and 699,953.20 is: 1,048,471.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,921.20 : 1,258,132.20 = 699,953.20 : x
  2. Step 2: Convert to fraction form
    839,921.20/1,258,132.20 = 699,953.20/x
  3. Step 3: Cross multiply
    839,921.20x = 1,258,132.20 × 699,953.20
  4. Step 4: Simplify right side
    839,921.20x = 880,633,659,413.04
  5. Step 5: Solve for x
    x = 880,633,659,413.04/839,921.20
  6. Step 6: Final answer
    x = 1,048,471.76

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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.