Home / 809,299.85-1,213,686.95-269,411.09

Finding the Fourth Proportional to 809,299.85, 1,213,686.95 and 269,411.09

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Solution

The fourth proportional to 809,299.85, 1,213,686.95 and 269,411.09 is: 404,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,299.85 : 1,213,686.95 = 269,411.09 : x
  2. Step 2: Convert to fraction form
    809,299.85/1,213,686.95 = 269,411.09/x
  3. Step 3: Cross multiply
    809,299.85x = 1,213,686.95 × 269,411.09
  4. Step 4: Simplify right side
    809,299.85x = 326,980,716,702.79
  5. Step 5: Solve for x
    x = 326,980,716,702.79/809,299.85
  6. Step 6: Final answer
    x = 404,029.14

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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.