Home / 2,278,702.80-3,144,604.32-1,311,480

Finding the Fourth Proportional to 2,278,702.80, 3,144,604.32 and 1,311,480

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Solution

The fourth proportional to 2,278,702.80, 3,144,604.32 and 1,311,480 is: 1,809,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278,702.80 : 3,144,604.32 = 1,311,480 : x
  2. Step 2: Convert to fraction form
    2,278,702.80/3,144,604.32 = 1,311,480/x
  3. Step 3: Cross multiply
    2,278,702.80x = 3,144,604.32 × 1,311,480
  4. Step 4: Simplify right side
    2,278,702.80x = 4,124,085,673,593.60
  5. Step 5: Solve for x
    x = 4,124,085,673,593.60/2,278,702.80
  6. Step 6: Final answer
    x = 1,809,839.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.