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Finding the Fourth Proportional to 664,894.80, 997,342.20 and 384,267.60

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Solution

The fourth proportional to 664,894.80, 997,342.20 and 384,267.60 is: 576,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,894.80 : 997,342.20 = 384,267.60 : x
  2. Step 2: Convert to fraction form
    664,894.80/997,342.20 = 384,267.60/x
  3. Step 3: Cross multiply
    664,894.80x = 997,342.20 × 384,267.60
  4. Step 4: Simplify right side
    664,894.80x = 383,246,293,572.72
  5. Step 5: Solve for x
    x = 383,246,293,572.72/664,894.80
  6. Step 6: Final answer
    x = 576,401.40

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Similar ratio
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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.