Home / 747,629.40-1,120,107.60-454,976.40

Finding the Fourth Proportional to 747,629.40, 1,120,107.60 and 454,976.40

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Solution

The fourth proportional to 747,629.40, 1,120,107.60 and 454,976.40 is: 681,651.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,629.40 : 1,120,107.60 = 454,976.40 : x
  2. Step 2: Convert to fraction form
    747,629.40/1,120,107.60 = 454,976.40/x
  3. Step 3: Cross multiply
    747,629.40x = 1,120,107.60 × 454,976.40
  4. Step 4: Simplify right side
    747,629.40x = 509,622,523,460.64
  5. Step 5: Solve for x
    x = 509,622,523,460.64/747,629.40
  6. Step 6: Final answer
    x = 681,651.26

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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.