Home / 809,893.24-1,216,088.36-685,172.26

Finding the Fourth Proportional to 809,893.24, 1,216,088.36 and 685,172.26

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Solution

The fourth proportional to 809,893.24, 1,216,088.36 and 685,172.26 is: 1,028,814.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,893.24 : 1,216,088.36 = 685,172.26 : x
  2. Step 2: Convert to fraction form
    809,893.24/1,216,088.36 = 685,172.26/x
  3. Step 3: Cross multiply
    809,893.24x = 1,216,088.36 × 685,172.26
  4. Step 4: Simplify right side
    809,893.24x = 833,230,009,980.89
  5. Step 5: Solve for x
    x = 833,230,009,980.89/809,893.24
  6. Step 6: Final answer
    x = 1,028,814.62

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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.