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Finding the Fourth Proportional to 664,314.70, 996,472.05 and 629,322.70

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Solution

The fourth proportional to 664,314.70, 996,472.05 and 629,322.70 is: 943,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,314.70 : 996,472.05 = 629,322.70 : x
  2. Step 2: Convert to fraction form
    664,314.70/996,472.05 = 629,322.70/x
  3. Step 3: Cross multiply
    664,314.70x = 996,472.05 × 629,322.70
  4. Step 4: Simplify right side
    664,314.70x = 627,102,480,980.54
  5. Step 5: Solve for x
    x = 627,102,480,980.54/664,314.70
  6. Step 6: Final answer
    x = 943,984.05

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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.