Home / 868,260.52-1,198,189.02-505,743.40

Finding the Fourth Proportional to 868,260.52, 1,198,189.02 and 505,743.40

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Solution

The fourth proportional to 868,260.52, 1,198,189.02 and 505,743.40 is: 697,919.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,260.52 : 1,198,189.02 = 505,743.40 : x
  2. Step 2: Convert to fraction form
    868,260.52/1,198,189.02 = 505,743.40/x
  3. Step 3: Cross multiply
    868,260.52x = 1,198,189.02 × 505,743.40
  4. Step 4: Simplify right side
    868,260.52x = 605,976,188,817.47
  5. Step 5: Solve for x
    x = 605,976,188,817.47/868,260.52
  6. Step 6: Final answer
    x = 697,919.78

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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.