Home / 782,516.52-1,079,883.99-455,821.14

Finding the Fourth Proportional to 782,516.52, 1,079,883.99 and 455,821.14

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Solution

The fourth proportional to 782,516.52, 1,079,883.99 and 455,821.14 is: 629,039.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,516.52 : 1,079,883.99 = 455,821.14 : x
  2. Step 2: Convert to fraction form
    782,516.52/1,079,883.99 = 455,821.14/x
  3. Step 3: Cross multiply
    782,516.52x = 1,079,883.99 × 455,821.14
  4. Step 4: Simplify right side
    782,516.52x = 492,233,951,389.55
  5. Step 5: Solve for x
    x = 492,233,951,389.55/782,516.52
  6. Step 6: Final answer
    x = 629,039.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.