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Finding the Fourth Proportional to 550,242.60, 759,282.30 and 308,469.72

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Solution

The fourth proportional to 550,242.60, 759,282.30 and 308,469.72 is: 425,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,242.60 : 759,282.30 = 308,469.72 : x
  2. Step 2: Convert to fraction form
    550,242.60/759,282.30 = 308,469.72/x
  3. Step 3: Cross multiply
    550,242.60x = 759,282.30 × 308,469.72
  4. Step 4: Simplify right side
    550,242.60x = 234,215,598,481.96
  5. Step 5: Solve for x
    x = 234,215,598,481.96/550,242.60
  6. Step 6: Final answer
    x = 425,658.79

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1.5x scale

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.