Home / 1,123,965.65-1,685,504.69-449,921.31

Finding the Fourth Proportional to 1,123,965.65, 1,685,504.69 and 449,921.31

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Solution

The fourth proportional to 1,123,965.65, 1,685,504.69 and 449,921.31 is: 674,704.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,965.65 : 1,685,504.69 = 449,921.31 : x
  2. Step 2: Convert to fraction form
    1,123,965.65/1,685,504.69 = 449,921.31/x
  3. Step 3: Cross multiply
    1,123,965.65x = 1,685,504.69 × 449,921.31
  4. Step 4: Simplify right side
    1,123,965.65x = 758,344,478,135.94
  5. Step 5: Solve for x
    x = 758,344,478,135.94/1,123,965.65
  6. Step 6: Final answer
    x = 674,704.32

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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.