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Finding the Fourth Proportional to 688,453.62, 950,062.92 and 382,579.80

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Solution

The fourth proportional to 688,453.62, 950,062.92 and 382,579.80 is: 527,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,453.62 : 950,062.92 = 382,579.80 : x
  2. Step 2: Convert to fraction form
    688,453.62/950,062.92 = 382,579.80/x
  3. Step 3: Cross multiply
    688,453.62x = 950,062.92 × 382,579.80
  4. Step 4: Simplify right side
    688,453.62x = 363,474,881,921.02
  5. Step 5: Solve for x
    x = 363,474,881,921.02/688,453.62
  6. Step 6: Final answer
    x = 527,958.41

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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.