Home / 808,556.38-1,211,636.41-328,199.68

Finding the Fourth Proportional to 808,556.38, 1,211,636.41 and 328,199.68

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Solution

The fourth proportional to 808,556.38, 1,211,636.41 and 328,199.68 is: 491,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,556.38 : 1,211,636.41 = 328,199.68 : x
  2. Step 2: Convert to fraction form
    808,556.38/1,211,636.41 = 328,199.68/x
  3. Step 3: Cross multiply
    808,556.38x = 1,211,636.41 × 328,199.68
  4. Step 4: Simplify right side
    808,556.38x = 397,658,682,038.35
  5. Step 5: Solve for x
    x = 397,658,682,038.35/808,556.38
  6. Step 6: Final answer
    x = 491,813.18

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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.