Home / 1,085,629.80-1,629,999.90-613,237.80

Finding the Fourth Proportional to 1,085,629.80, 1,629,999.90 and 613,237.80

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Solution

The fourth proportional to 1,085,629.80, 1,629,999.90 and 613,237.80 is: 920,735.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,629.80 : 1,629,999.90 = 613,237.80 : x
  2. Step 2: Convert to fraction form
    1,085,629.80/1,629,999.90 = 613,237.80/x
  3. Step 3: Cross multiply
    1,085,629.80x = 1,629,999.90 × 613,237.80
  4. Step 4: Simplify right side
    1,085,629.80x = 999,577,552,676.22
  5. Step 5: Solve for x
    x = 999,577,552,676.22/1,085,629.80
  6. Step 6: Final answer
    x = 920,735.18

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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.