Home / 1,396,172.88-2,092,321.73-636,156.98

Finding the Fourth Proportional to 1,396,172.88, 2,092,321.73 and 636,156.98

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Solution

The fourth proportional to 1,396,172.88, 2,092,321.73 and 636,156.98 is: 953,352.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,172.88 : 2,092,321.73 = 636,156.98 : x
  2. Step 2: Convert to fraction form
    1,396,172.88/2,092,321.73 = 636,156.98/x
  3. Step 3: Cross multiply
    1,396,172.88x = 2,092,321.73 × 636,156.98
  4. Step 4: Simplify right side
    1,396,172.88x = 1,331,045,059,302.78
  5. Step 5: Solve for x
    x = 1,331,045,059,302.78/1,396,172.88
  6. Step 6: Final answer
    x = 953,352.61

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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.