Home / 1,107,991.80-1,663,299.90-628,601.40

Finding the Fourth Proportional to 1,107,991.80, 1,663,299.90 and 628,601.40

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Solution

The fourth proportional to 1,107,991.80, 1,663,299.90 and 628,601.40 is: 943,646.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,991.80 : 1,663,299.90 = 628,601.40 : x
  2. Step 2: Convert to fraction form
    1,107,991.80/1,663,299.90 = 628,601.40/x
  3. Step 3: Cross multiply
    1,107,991.80x = 1,663,299.90 × 628,601.40
  4. Step 4: Simplify right side
    1,107,991.80x = 1,045,552,645,759.86
  5. Step 5: Solve for x
    x = 1,045,552,645,759.86/1,107,991.80
  6. Step 6: Final answer
    x = 943,646.56

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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.