Home / 852,743.82-1,278,440.94-320,205.54

Finding the Fourth Proportional to 852,743.82, 1,278,440.94 and 320,205.54

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Solution

The fourth proportional to 852,743.82, 1,278,440.94 and 320,205.54 is: 480,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,743.82 : 1,278,440.94 = 320,205.54 : x
  2. Step 2: Convert to fraction form
    852,743.82/1,278,440.94 = 320,205.54/x
  3. Step 3: Cross multiply
    852,743.82x = 1,278,440.94 × 320,205.54
  4. Step 4: Simplify right side
    852,743.82x = 409,363,871,550.81
  5. Step 5: Solve for x
    x = 409,363,871,550.81/852,743.82
  6. Step 6: Final answer
    x = 480,054.93

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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.