Home / 1,640,404.26-2,460,606.36-518,385.78

Finding the Fourth Proportional to 1,640,404.26, 2,460,606.36 and 518,385.78

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Solution

The fourth proportional to 1,640,404.26, 2,460,606.36 and 518,385.78 is: 777,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,404.26 : 2,460,606.36 = 518,385.78 : x
  2. Step 2: Convert to fraction form
    1,640,404.26/2,460,606.36 = 518,385.78/x
  3. Step 3: Cross multiply
    1,640,404.26x = 2,460,606.36 × 518,385.78
  4. Step 4: Simplify right side
    1,640,404.26x = 1,275,543,347,201.56
  5. Step 5: Solve for x
    x = 1,275,543,347,201.56/1,640,404.26
  6. Step 6: Final answer
    x = 777,578.66

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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.