Home / 1,106,387.40-1,659,581.10-770,464.20

Finding the Fourth Proportional to 1,106,387.40, 1,659,581.10 and 770,464.20

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Solution

The fourth proportional to 1,106,387.40, 1,659,581.10 and 770,464.20 is: 1,155,696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,387.40 : 1,659,581.10 = 770,464.20 : x
  2. Step 2: Convert to fraction form
    1,106,387.40/1,659,581.10 = 770,464.20/x
  3. Step 3: Cross multiply
    1,106,387.40x = 1,659,581.10 × 770,464.20
  4. Step 4: Simplify right side
    1,106,387.40x = 1,278,647,824,546.62
  5. Step 5: Solve for x
    x = 1,278,647,824,546.62/1,106,387.40
  6. Step 6: Final answer
    x = 1,155,696.30

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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.