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Finding the Fourth Proportional to 605,327.90, 834,952.46 and 378,579.74

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Solution

The fourth proportional to 605,327.90, 834,952.46 and 378,579.74 is: 522,189.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,327.90 : 834,952.46 = 378,579.74 : x
  2. Step 2: Convert to fraction form
    605,327.90/834,952.46 = 378,579.74/x
  3. Step 3: Cross multiply
    605,327.90x = 834,952.46 × 378,579.74
  4. Step 4: Simplify right side
    605,327.90x = 316,096,085,219.16
  5. Step 5: Solve for x
    x = 316,096,085,219.16/605,327.90
  6. Step 6: Final answer
    x = 522,189.85

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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.