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Finding the Fourth Proportional to 665,570.26, 997,635.48 and 265,771.45

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Solution

The fourth proportional to 665,570.26, 997,635.48 and 265,771.45 is: 398,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,570.26 : 997,635.48 = 265,771.45 : x
  2. Step 2: Convert to fraction form
    665,570.26/997,635.48 = 265,771.45/x
  3. Step 3: Cross multiply
    665,570.26x = 997,635.48 × 265,771.45
  4. Step 4: Simplify right side
    665,570.26x = 265,143,028,091.05
  5. Step 5: Solve for x
    x = 265,143,028,091.05/665,570.26
  6. Step 6: Final answer
    x = 398,369.70

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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.