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Finding the Fourth Proportional to 552,387.89, 762,399.98 and 345,752.12

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Solution

The fourth proportional to 552,387.89, 762,399.98 and 345,752.12 is: 477,203.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,387.89 : 762,399.98 = 345,752.12 : x
  2. Step 2: Convert to fraction form
    552,387.89/762,399.98 = 345,752.12/x
  3. Step 3: Cross multiply
    552,387.89x = 762,399.98 × 345,752.12
  4. Step 4: Simplify right side
    552,387.89x = 263,601,403,832.20
  5. Step 5: Solve for x
    x = 263,601,403,832.20/552,387.89
  6. Step 6: Final answer
    x = 477,203.45

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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.