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Finding the Fourth Proportional to 853,324.77, 1,279,978.38 and 493,266.52

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Solution

The fourth proportional to 853,324.77, 1,279,978.38 and 493,266.52 is: 739,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,324.77 : 1,279,978.38 = 493,266.52 : x
  2. Step 2: Convert to fraction form
    853,324.77/1,279,978.38 = 493,266.52/x
  3. Step 3: Cross multiply
    853,324.77x = 1,279,978.38 × 493,266.52
  4. Step 4: Simplify right side
    853,324.77x = 631,370,477,874.21
  5. Step 5: Solve for x
    x = 631,370,477,874.21/853,324.77
  6. Step 6: Final answer
    x = 739,894.71

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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.