Home / 1,820,981.80-2,731,472.70-1,640,578.60

Finding the Fourth Proportional to 1,820,981.80, 2,731,472.70 and 1,640,578.60

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Solution

The fourth proportional to 1,820,981.80, 2,731,472.70 and 1,640,578.60 is: 2,460,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,981.80 : 2,731,472.70 = 1,640,578.60 : x
  2. Step 2: Convert to fraction form
    1,820,981.80/2,731,472.70 = 1,640,578.60/x
  3. Step 3: Cross multiply
    1,820,981.80x = 2,731,472.70 × 1,640,578.60
  4. Step 4: Simplify right side
    1,820,981.80x = 4,481,195,658,104.22
  5. Step 5: Solve for x
    x = 4,481,195,658,104.22/1,820,981.80
  6. Step 6: Final answer
    x = 2,460,867.90

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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.