Home / 324,643.77-486,993.24-84,789.45

Finding the Fourth Proportional to 324,643.77, 486,993.24 and 84,789.45

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Solution

The fourth proportional to 324,643.77, 486,993.24 and 84,789.45 is: 127,191.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,643.77 : 486,993.24 = 84,789.45 : x
  2. Step 2: Convert to fraction form
    324,643.77/486,993.24 = 84,789.45/x
  3. Step 3: Cross multiply
    324,643.77x = 486,993.24 × 84,789.45
  4. Step 4: Simplify right side
    324,643.77x = 41,291,888,973.32
  5. Step 5: Solve for x
    x = 41,291,888,973.32/324,643.77
  6. Step 6: Final answer
    x = 127,191.38

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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.