Home / 782,800.86-1,174,212.24-221,835.36

Finding the Fourth Proportional to 782,800.86, 1,174,212.24 and 221,835.36

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Solution

The fourth proportional to 782,800.86, 1,174,212.24 and 221,835.36 is: 332,756.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,800.86 : 1,174,212.24 = 221,835.36 : x
  2. Step 2: Convert to fraction form
    782,800.86/1,174,212.24 = 221,835.36/x
  3. Step 3: Cross multiply
    782,800.86x = 1,174,212.24 × 221,835.36
  4. Step 4: Simplify right side
    782,800.86x = 260,481,794,976.81
  5. Step 5: Solve for x
    x = 260,481,794,976.81/782,800.86
  6. Step 6: Final answer
    x = 332,756.14

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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.