Home / 690,201.76-1,035,147.12-269,260.96

Finding the Fourth Proportional to 690,201.76, 1,035,147.12 and 269,260.96

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Solution

The fourth proportional to 690,201.76, 1,035,147.12 and 269,260.96 is: 403,830.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,201.76 : 1,035,147.12 = 269,260.96 : x
  2. Step 2: Convert to fraction form
    690,201.76/1,035,147.12 = 269,260.96/x
  3. Step 3: Cross multiply
    690,201.76x = 1,035,147.12 × 269,260.96
  4. Step 4: Simplify right side
    690,201.76x = 278,724,707,272.44
  5. Step 5: Solve for x
    x = 278,724,707,272.44/690,201.76
  6. Step 6: Final answer
    x = 403,830.77

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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.