Home / 1,112,452.10-1,669,115.55-438,418.70

Finding the Fourth Proportional to 1,112,452.10, 1,669,115.55 and 438,418.70

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Solution

The fourth proportional to 1,112,452.10, 1,669,115.55 and 438,418.70 is: 657,800.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,452.10 : 1,669,115.55 = 438,418.70 : x
  2. Step 2: Convert to fraction form
    1,112,452.10/1,669,115.55 = 438,418.70/x
  3. Step 3: Cross multiply
    1,112,452.10x = 1,669,115.55 × 438,418.70
  4. Step 4: Simplify right side
    1,112,452.10x = 731,771,469,580.79
  5. Step 5: Solve for x
    x = 731,771,469,580.79/1,112,452.10
  6. Step 6: Final answer
    x = 657,800.43

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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.