Home / 1,261,790.14-1,741,894.72-778,621.36

Finding the Fourth Proportional to 1,261,790.14, 1,741,894.72 and 778,621.36

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Solution

The fourth proportional to 1,261,790.14, 1,741,894.72 and 778,621.36 is: 1,074,882.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,790.14 : 1,741,894.72 = 778,621.36 : x
  2. Step 2: Convert to fraction form
    1,261,790.14/1,741,894.72 = 778,621.36/x
  3. Step 3: Cross multiply
    1,261,790.14x = 1,741,894.72 × 778,621.36
  4. Step 4: Simplify right side
    1,261,790.14x = 1,356,276,435,863.22
  5. Step 5: Solve for x
    x = 1,356,276,435,863.22/1,261,790.14
  6. Step 6: Final answer
    x = 1,074,882.73

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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.