Home / 1,310,536.96-1,965,100.72-770,979.76

Finding the Fourth Proportional to 1,310,536.96, 1,965,100.72 and 770,979.76

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Solution

The fourth proportional to 1,310,536.96, 1,965,100.72 and 770,979.76 is: 1,156,055.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,536.96 : 1,965,100.72 = 770,979.76 : x
  2. Step 2: Convert to fraction form
    1,310,536.96/1,965,100.72 = 770,979.76/x
  3. Step 3: Cross multiply
    1,310,536.96x = 1,965,100.72 × 770,979.76
  4. Step 4: Simplify right side
    1,310,536.96x = 1,515,052,881,481.43
  5. Step 5: Solve for x
    x = 1,515,052,881,481.43/1,310,536.96
  6. Step 6: Final answer
    x = 1,156,055.06

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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.