Home / 552,441.12-762,361.20-310,723.62

Finding the Fourth Proportional to 552,441.12, 762,361.20 and 310,723.62

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Solution

The fourth proportional to 552,441.12, 762,361.20 and 310,723.62 is: 428,794.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,441.12 : 762,361.20 = 310,723.62 : x
  2. Step 2: Convert to fraction form
    552,441.12/762,361.20 = 310,723.62/x
  3. Step 3: Cross multiply
    552,441.12x = 762,361.20 × 310,723.62
  4. Step 4: Simplify right side
    552,441.12x = 236,883,631,811.54
  5. Step 5: Solve for x
    x = 236,883,631,811.54/552,441.12
  6. Step 6: Final answer
    x = 428,794.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.