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Finding the Fourth Proportional to 552,206.43, 762,076.76 and 310,489.47

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Solution

The fourth proportional to 552,206.43, 762,076.76 and 310,489.47 is: 428,493.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,206.43 : 762,076.76 = 310,489.47 : x
  2. Step 2: Convert to fraction form
    552,206.43/762,076.76 = 310,489.47/x
  3. Step 3: Cross multiply
    552,206.43x = 762,076.76 × 310,489.47
  4. Step 4: Simplify right side
    552,206.43x = 236,616,807,759.27
  5. Step 5: Solve for x
    x = 236,616,807,759.27/552,206.43
  6. Step 6: Final answer
    x = 428,493.39

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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.