Home / 908,185.78-1,361,805.64-339,098.86

Finding the Fourth Proportional to 908,185.78, 1,361,805.64 and 339,098.86

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Solution

The fourth proportional to 908,185.78, 1,361,805.64 and 339,098.86 is: 508,471.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,185.78 : 1,361,805.64 = 339,098.86 : x
  2. Step 2: Convert to fraction form
    908,185.78/1,361,805.64 = 339,098.86/x
  3. Step 3: Cross multiply
    908,185.78x = 1,361,805.64 × 339,098.86
  4. Step 4: Simplify right side
    908,185.78x = 461,786,735,813.31
  5. Step 5: Solve for x
    x = 461,786,735,813.31/908,185.78
  6. Step 6: Final answer
    x = 508,471.67

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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.