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Finding the Fourth Proportional to 552,571.23, 762,540.68 and 310,853.73

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Solution

The fourth proportional to 552,571.23, 762,540.68 and 310,853.73 is: 428,973.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,571.23 : 762,540.68 = 310,853.73 : x
  2. Step 2: Convert to fraction form
    552,571.23/762,540.68 = 310,853.73/x
  3. Step 3: Cross multiply
    552,571.23x = 762,540.68 × 310,853.73
  4. Step 4: Simplify right side
    552,571.23x = 237,038,618,291.40
  5. Step 5: Solve for x
    x = 237,038,618,291.40/552,571.23
  6. Step 6: Final answer
    x = 428,973.87

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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.