Home / 1,287,759.24-1,930,456.26-445,722.12

Finding the Fourth Proportional to 1,287,759.24, 1,930,456.26 and 445,722.12

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Solution

The fourth proportional to 1,287,759.24, 1,930,456.26 and 445,722.12 is: 668,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,759.24 : 1,930,456.26 = 445,722.12 : x
  2. Step 2: Convert to fraction form
    1,287,759.24/1,930,456.26 = 445,722.12/x
  3. Step 3: Cross multiply
    1,287,759.24x = 1,930,456.26 × 445,722.12
  4. Step 4: Simplify right side
    1,287,759.24x = 860,447,056,774.47
  5. Step 5: Solve for x
    x = 860,447,056,774.47/1,287,759.24
  6. Step 6: Final answer
    x = 668,173.86

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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.