Home / 821,023.89-1,231,890.63-441,501.03

Finding the Fourth Proportional to 821,023.89, 1,231,890.63 and 441,501.03

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Solution

The fourth proportional to 821,023.89, 1,231,890.63 and 441,501.03 is: 662,442.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,023.89 : 1,231,890.63 = 441,501.03 : x
  2. Step 2: Convert to fraction form
    821,023.89/1,231,890.63 = 441,501.03/x
  3. Step 3: Cross multiply
    821,023.89x = 1,231,890.63 × 441,501.03
  4. Step 4: Simplify right side
    821,023.89x = 543,880,981,992.35
  5. Step 5: Solve for x
    x = 543,880,981,992.35/821,023.89
  6. Step 6: Final answer
    x = 662,442.33

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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.