Home / 324,629.80-486,944.70-312,188.20

Finding the Fourth Proportional to 324,629.80, 486,944.70 and 312,188.20

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Solution

The fourth proportional to 324,629.80, 486,944.70 and 312,188.20 is: 468,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,629.80 : 486,944.70 = 312,188.20 : x
  2. Step 2: Convert to fraction form
    324,629.80/486,944.70 = 312,188.20/x
  3. Step 3: Cross multiply
    324,629.80x = 486,944.70 × 312,188.20
  4. Step 4: Simplify right side
    324,629.80x = 152,018,389,392.54
  5. Step 5: Solve for x
    x = 152,018,389,392.54/324,629.80
  6. Step 6: Final answer
    x = 468,282.30

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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.