Home / 1,128,736.40-1,693,086-454,801.28

Finding the Fourth Proportional to 1,128,736.40, 1,693,086 and 454,801.28

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Solution

The fourth proportional to 1,128,736.40, 1,693,086 and 454,801.28 is: 682,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,736.40 : 1,693,086 = 454,801.28 : x
  2. Step 2: Convert to fraction form
    1,128,736.40/1,693,086 = 454,801.28/x
  3. Step 3: Cross multiply
    1,128,736.40x = 1,693,086 × 454,801.28
  4. Step 4: Simplify right side
    1,128,736.40x = 770,017,679,950.08
  5. Step 5: Solve for x
    x = 770,017,679,950.08/1,128,736.40
  6. Step 6: Final answer
    x = 682,194.43

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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.