Home / 852,742.82-1,278,439.44-320,204.54

Finding the Fourth Proportional to 852,742.82, 1,278,439.44 and 320,204.54

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Solution

The fourth proportional to 852,742.82, 1,278,439.44 and 320,204.54 is: 480,053.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,742.82 : 1,278,439.44 = 320,204.54 : x
  2. Step 2: Convert to fraction form
    852,742.82/1,278,439.44 = 320,204.54/x
  3. Step 3: Cross multiply
    852,742.82x = 1,278,439.44 × 320,204.54
  4. Step 4: Simplify right side
    852,742.82x = 409,362,112,803.06
  5. Step 5: Solve for x
    x = 409,362,112,803.06/852,742.82
  6. Step 6: Final answer
    x = 480,053.43

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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.