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Finding the Fourth Proportional to 688,449,612, 950,060,484 and 379,400,268

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Solution

The fourth proportional to 688,449,612, 950,060,484 and 379,400,268 is: 523,572,380.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,449,612 : 950,060,484 = 379,400,268 : x
  2. Step 2: Convert to fraction form
    688,449,612/950,060,484 = 379,400,268/x
  3. Step 3: Cross multiply
    688,449,612x = 950,060,484 × 379,400,268
  4. Step 4: Simplify right side
    688,449,612x = 360,453,202,245,809,728
  5. Step 5: Solve for x
    x = 360,453,202,245,809,728/688,449,612
  6. Step 6: Final answer
    x = 523,572,380.55

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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.