Home / 1,290,983.40-1,936,014.30-449,562.60

Finding the Fourth Proportional to 1,290,983.40, 1,936,014.30 and 449,562.60

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Solution

The fourth proportional to 1,290,983.40, 1,936,014.30 and 449,562.60 is: 674,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,983.40 : 1,936,014.30 = 449,562.60 : x
  2. Step 2: Convert to fraction form
    1,290,983.40/1,936,014.30 = 449,562.60/x
  3. Step 3: Cross multiply
    1,290,983.40x = 1,936,014.30 × 449,562.60
  4. Step 4: Simplify right side
    1,290,983.40x = 870,359,622,345.18
  5. Step 5: Solve for x
    x = 870,359,622,345.18/1,290,983.40
  6. Step 6: Final answer
    x = 674,183.43

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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.