Home / 1,111,517.35-1,533,873.90-628,072.09

Finding the Fourth Proportional to 1,111,517.35, 1,533,873.90 and 628,072.09

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Solution

The fourth proportional to 1,111,517.35, 1,533,873.90 and 628,072.09 is: 866,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,517.35 : 1,533,873.90 = 628,072.09 : x
  2. Step 2: Convert to fraction form
    1,111,517.35/1,533,873.90 = 628,072.09/x
  3. Step 3: Cross multiply
    1,111,517.35x = 1,533,873.90 × 628,072.09
  4. Step 4: Simplify right side
    1,111,517.35x = 963,383,378,500.08
  5. Step 5: Solve for x
    x = 963,383,378,500.08/1,111,517.35
  6. Step 6: Final answer
    x = 866,728.16

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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.