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Finding the Fourth Proportional to 668,687.50, 1,003,193.31 and 384,559.90

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Solution

The fourth proportional to 668,687.50, 1,003,193.31 and 384,559.90 is: 576,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,687.50 : 1,003,193.31 = 384,559.90 : x
  2. Step 2: Convert to fraction form
    668,687.50/1,003,193.31 = 384,559.90/x
  3. Step 3: Cross multiply
    668,687.50x = 1,003,193.31 × 384,559.90
  4. Step 4: Simplify right side
    668,687.50x = 385,787,918,974.27
  5. Step 5: Solve for x
    x = 385,787,918,974.27/668,687.50
  6. Step 6: Final answer
    x = 576,933.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.