Home / 1,291,976-1,782,909.47-719,016.02

Finding the Fourth Proportional to 1,291,976, 1,782,909.47 and 719,016.02

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Solution

The fourth proportional to 1,291,976, 1,782,909.47 and 719,016.02 is: 992,232.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,976 : 1,782,909.47 = 719,016.02 : x
  2. Step 2: Convert to fraction form
    1,291,976/1,782,909.47 = 719,016.02/x
  3. Step 3: Cross multiply
    1,291,976x = 1,782,909.47 × 719,016.02
  4. Step 4: Simplify right side
    1,291,976x = 1,281,940,467,544.63
  5. Step 5: Solve for x
    x = 1,281,940,467,544.63/1,291,976
  6. Step 6: Final answer
    x = 992,232.42

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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.