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Finding the Fourth Proportional to 688,563.32, 950,156.89 and 382,620.32

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Solution

The fourth proportional to 688,563.32, 950,156.89 and 382,620.32 is: 527,982.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,563.32 : 950,156.89 = 382,620.32 : x
  2. Step 2: Convert to fraction form
    688,563.32/950,156.89 = 382,620.32/x
  3. Step 3: Cross multiply
    688,563.32x = 950,156.89 × 382,620.32
  4. Step 4: Simplify right side
    688,563.32x = 363,549,327,594.67
  5. Step 5: Solve for x
    x = 363,549,327,594.67/688,563.32
  6. Step 6: Final answer
    x = 527,982.42

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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.