Home / 778,136.20-1,166,556.30-329,201.80

Finding the Fourth Proportional to 778,136.20, 1,166,556.30 and 329,201.80

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Solution

The fourth proportional to 778,136.20, 1,166,556.30 and 329,201.80 is: 493,528.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,136.20 : 1,166,556.30 = 329,201.80 : x
  2. Step 2: Convert to fraction form
    778,136.20/1,166,556.30 = 329,201.80/x
  3. Step 3: Cross multiply
    778,136.20x = 1,166,556.30 × 329,201.80
  4. Step 4: Simplify right side
    778,136.20x = 384,032,433,761.34
  5. Step 5: Solve for x
    x = 384,032,433,761.34/778,136.20
  6. Step 6: Final answer
    x = 493,528.55

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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.