Home / 1,198,795.40-1,650,969.78-1,172,668.04

Finding the Fourth Proportional to 1,198,795.40, 1,650,969.78 and 1,172,668.04

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Solution

The fourth proportional to 1,198,795.40, 1,650,969.78 and 1,172,668.04 is: 1,614,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,795.40 : 1,650,969.78 = 1,172,668.04 : x
  2. Step 2: Convert to fraction form
    1,198,795.40/1,650,969.78 = 1,172,668.04/x
  3. Step 3: Cross multiply
    1,198,795.40x = 1,650,969.78 × 1,172,668.04
  4. Step 4: Simplify right side
    1,198,795.40x = 1,936,039,496,011.83
  5. Step 5: Solve for x
    x = 1,936,039,496,011.83/1,198,795.40
  6. Step 6: Final answer
    x = 1,614,987.42

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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.