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Finding the Fourth Proportional to 552,466.56, 762,396.20 and 310,749.30

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Solution

The fourth proportional to 552,466.56, 762,396.20 and 310,749.30 is: 428,829.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,466.56 : 762,396.20 = 310,749.30 : x
  2. Step 2: Convert to fraction form
    552,466.56/762,396.20 = 310,749.30/x
  3. Step 3: Cross multiply
    552,466.56x = 762,396.20 × 310,749.30
  4. Step 4: Simplify right side
    552,466.56x = 236,914,083,918.91
  5. Step 5: Solve for x
    x = 236,914,083,918.91/552,466.56
  6. Step 6: Final answer
    x = 428,829.73

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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.