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Finding the Fourth Proportional to 613,258.80, 919,523.70 and 376,771.20

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Solution

The fourth proportional to 613,258.80, 919,523.70 and 376,771.20 is: 564,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,258.80 : 919,523.70 = 376,771.20 : x
  2. Step 2: Convert to fraction form
    613,258.80/919,523.70 = 376,771.20/x
  3. Step 3: Cross multiply
    613,258.80x = 919,523.70 × 376,771.20
  4. Step 4: Simplify right side
    613,258.80x = 346,450,047,877.44
  5. Step 5: Solve for x
    x = 346,450,047,877.44/613,258.80
  6. Step 6: Final answer
    x = 564,932.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.