Home / 1,111,991.28-1,534,625.96-628,560.39

Finding the Fourth Proportional to 1,111,991.28, 1,534,625.96 and 628,560.39

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Solution

The fourth proportional to 1,111,991.28, 1,534,625.96 and 628,560.39 is: 867,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,991.28 : 1,534,625.96 = 628,560.39 : x
  2. Step 2: Convert to fraction form
    1,111,991.28/1,534,625.96 = 628,560.39/x
  3. Step 3: Cross multiply
    1,111,991.28x = 1,534,625.96 × 628,560.39
  4. Step 4: Simplify right side
    1,111,991.28x = 964,605,091,921.72
  5. Step 5: Solve for x
    x = 964,605,091,921.72/1,111,991.28
  6. Step 6: Final answer
    x = 867,457.42

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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.