Home / 1,045,398.21-1,567,910.25-665,189.54

Finding the Fourth Proportional to 1,045,398.21, 1,567,910.25 and 665,189.54

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Solution

The fourth proportional to 1,045,398.21, 1,567,910.25 and 665,189.54 is: 997,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,398.21 : 1,567,910.25 = 665,189.54 : x
  2. Step 2: Convert to fraction form
    1,045,398.21/1,567,910.25 = 665,189.54/x
  3. Step 3: Cross multiply
    1,045,398.21x = 1,567,910.25 × 665,189.54
  4. Step 4: Simplify right side
    1,045,398.21x = 1,042,957,491,782.21
  5. Step 5: Solve for x
    x = 1,042,957,491,782.21/1,045,398.21
  6. Step 6: Final answer
    x = 997,665.28

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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.