Home / 810,612.44-1,215,733.78-305,226.72

Finding the Fourth Proportional to 810,612.44, 1,215,733.78 and 305,226.72

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Solution

The fourth proportional to 810,612.44, 1,215,733.78 and 305,226.72 is: 457,770.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,612.44 : 1,215,733.78 = 305,226.72 : x
  2. Step 2: Convert to fraction form
    810,612.44/1,215,733.78 = 305,226.72/x
  3. Step 3: Cross multiply
    810,612.44x = 1,215,733.78 × 305,226.72
  4. Step 4: Simplify right side
    810,612.44x = 371,074,434,062.60
  5. Step 5: Solve for x
    x = 371,074,434,062.60/810,612.44
  6. Step 6: Final answer
    x = 457,770.47

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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.