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Finding the Fourth Proportional to 552,640.32, 762,736.86 and 320,033.43

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Solution

The fourth proportional to 552,640.32, 762,736.86 and 320,033.43 is: 441,700.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,640.32 : 762,736.86 = 320,033.43 : x
  2. Step 2: Convert to fraction form
    552,640.32/762,736.86 = 320,033.43/x
  3. Step 3: Cross multiply
    552,640.32x = 762,736.86 × 320,033.43
  4. Step 4: Simplify right side
    552,640.32x = 244,101,293,493.23
  5. Step 5: Solve for x
    x = 244,101,293,493.23/552,640.32
  6. Step 6: Final answer
    x = 441,700.12

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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.