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Finding the Fourth Proportional to 664,429.80, 996,644.70 and 465,364.20

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Solution

The fourth proportional to 664,429.80, 996,644.70 and 465,364.20 is: 698,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,429.80 : 996,644.70 = 465,364.20 : x
  2. Step 2: Convert to fraction form
    664,429.80/996,644.70 = 465,364.20/x
  3. Step 3: Cross multiply
    664,429.80x = 996,644.70 × 465,364.20
  4. Step 4: Simplify right side
    664,429.80x = 463,802,763,499.74
  5. Step 5: Solve for x
    x = 463,802,763,499.74/664,429.80
  6. Step 6: Final answer
    x = 698,046.30

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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.