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Finding the Fourth Proportional to 663,994.80, 996,121.80 and 284,914.80

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Solution

The fourth proportional to 663,994.80, 996,121.80 and 284,914.80 is: 427,427.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,994.80 : 996,121.80 = 284,914.80 : x
  2. Step 2: Convert to fraction form
    663,994.80/996,121.80 = 284,914.80/x
  3. Step 3: Cross multiply
    663,994.80x = 996,121.80 × 284,914.80
  4. Step 4: Simplify right side
    663,994.80x = 283,809,843,422.64
  5. Step 5: Solve for x
    x = 283,809,843,422.64/663,994.80
  6. Step 6: Final answer
    x = 427,427.81

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1.5x scale

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.