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Finding the Fourth Proportional to 552,363.32, 762,254.12 and 310,645.80

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Solution

The fourth proportional to 552,363.32, 762,254.12 and 310,645.80 is: 428,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,363.32 : 762,254.12 = 310,645.80 : x
  2. Step 2: Convert to fraction form
    552,363.32/762,254.12 = 310,645.80/x
  3. Step 3: Cross multiply
    552,363.32x = 762,254.12 × 310,645.80
  4. Step 4: Simplify right side
    552,363.32x = 236,791,040,910.70
  5. Step 5: Solve for x
    x = 236,791,040,910.70/552,363.32
  6. Step 6: Final answer
    x = 428,687.12

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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.