Home / 809,178.16-1,213,825.74-310,542.16

Finding the Fourth Proportional to 809,178.16, 1,213,825.74 and 310,542.16

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Solution

The fourth proportional to 809,178.16, 1,213,825.74 and 310,542.16 is: 465,835.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,178.16 : 1,213,825.74 = 310,542.16 : x
  2. Step 2: Convert to fraction form
    809,178.16/1,213,825.74 = 310,542.16/x
  3. Step 3: Cross multiply
    809,178.16x = 1,213,825.74 × 310,542.16
  4. Step 4: Simplify right side
    809,178.16x = 376,944,067,163.20
  5. Step 5: Solve for x
    x = 376,944,067,163.20/809,178.16
  6. Step 6: Final answer
    x = 465,835.69

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1.5x scale

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.