Home / 1,291,939.08-1,782,862.92-718,969.56

Finding the Fourth Proportional to 1,291,939.08, 1,782,862.92 and 718,969.56

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Solution

The fourth proportional to 1,291,939.08, 1,782,862.92 and 718,969.56 is: 992,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,939.08 : 1,782,862.92 = 718,969.56 : x
  2. Step 2: Convert to fraction form
    1,291,939.08/1,782,862.92 = 718,969.56/x
  3. Step 3: Cross multiply
    1,291,939.08x = 1,782,862.92 × 718,969.56
  4. Step 4: Simplify right side
    1,291,939.08x = 1,281,824,169,132.72
  5. Step 5: Solve for x
    x = 1,281,824,169,132.72/1,291,939.08
  6. Step 6: Final answer
    x = 992,170.75

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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.