Home / 1,301,976.88-1,796,940.78-778,653.16

Finding the Fourth Proportional to 1,301,976.88, 1,796,940.78 and 778,653.16

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Solution

The fourth proportional to 1,301,976.88, 1,796,940.78 and 778,653.16 is: 1,074,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,976.88 : 1,796,940.78 = 778,653.16 : x
  2. Step 2: Convert to fraction form
    1,301,976.88/1,796,940.78 = 778,653.16/x
  3. Step 3: Cross multiply
    1,301,976.88x = 1,796,940.78 × 778,653.16
  4. Step 4: Simplify right side
    1,301,976.88x = 1,399,193,616,679.87
  5. Step 5: Solve for x
    x = 1,399,193,616,679.87/1,301,976.88
  6. Step 6: Final answer
    x = 1,074,668.56

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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.