Home / 1,123,289.10-1,684,940.85-449,426.70

Finding the Fourth Proportional to 1,123,289.10, 1,684,940.85 and 449,426.70

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Solution

The fourth proportional to 1,123,289.10, 1,684,940.85 and 449,426.70 is: 674,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,289.10 : 1,684,940.85 = 449,426.70 : x
  2. Step 2: Convert to fraction form
    1,123,289.10/1,684,940.85 = 449,426.70/x
  3. Step 3: Cross multiply
    1,123,289.10x = 1,684,940.85 × 449,426.70
  4. Step 4: Simplify right side
    1,123,289.10x = 757,257,405,910.70
  5. Step 5: Solve for x
    x = 757,257,405,910.70/1,123,289.10
  6. Step 6: Final answer
    x = 674,142.93

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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.