Home / 394,460.32-591,632.16-145,084

Finding the Fourth Proportional to 394,460.32, 591,632.16 and 145,084

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Solution

The fourth proportional to 394,460.32, 591,632.16 and 145,084 is: 217,604.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,460.32 : 591,632.16 = 145,084 : x
  2. Step 2: Convert to fraction form
    394,460.32/591,632.16 = 145,084/x
  3. Step 3: Cross multiply
    394,460.32x = 591,632.16 × 145,084
  4. Step 4: Simplify right side
    394,460.32x = 85,836,360,301.44
  5. Step 5: Solve for x
    x = 85,836,360,301.44/394,460.32
  6. Step 6: Final answer
    x = 217,604.55

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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.