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Finding the Fourth Proportional to 665,081.70, 997,622.55 and 465,627.30

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Solution

The fourth proportional to 665,081.70, 997,622.55 and 465,627.30 is: 698,440.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,081.70 : 997,622.55 = 465,627.30 : x
  2. Step 2: Convert to fraction form
    665,081.70/997,622.55 = 465,627.30/x
  3. Step 3: Cross multiply
    665,081.70x = 997,622.55 × 465,627.30
  4. Step 4: Simplify right side
    665,081.70x = 464,520,294,375.62
  5. Step 5: Solve for x
    x = 464,520,294,375.62/665,081.70
  6. Step 6: Final answer
    x = 698,440.95

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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.