Home / 1,053,942.26-1,581,132.11-422,905.28

Finding the Fourth Proportional to 1,053,942.26, 1,581,132.11 and 422,905.28

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Solution

The fourth proportional to 1,053,942.26, 1,581,132.11 and 422,905.28 is: 634,445.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,942.26 : 1,581,132.11 = 422,905.28 : x
  2. Step 2: Convert to fraction form
    1,053,942.26/1,581,132.11 = 422,905.28/x
  3. Step 3: Cross multiply
    1,053,942.26x = 1,581,132.11 × 422,905.28
  4. Step 4: Simplify right side
    1,053,942.26x = 668,669,107,676.35
  5. Step 5: Solve for x
    x = 668,669,107,676.35/1,053,942.26
  6. Step 6: Final answer
    x = 634,445.68

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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.