Home / 868,261.52-1,198,190.40-505,744.40

Finding the Fourth Proportional to 868,261.52, 1,198,190.40 and 505,744.40

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Solution

The fourth proportional to 868,261.52, 1,198,190.40 and 505,744.40 is: 697,921.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,261.52 : 1,198,190.40 = 505,744.40 : x
  2. Step 2: Convert to fraction form
    868,261.52/1,198,190.40 = 505,744.40/x
  3. Step 3: Cross multiply
    868,261.52x = 1,198,190.40 × 505,744.40
  4. Step 4: Simplify right side
    868,261.52x = 605,978,084,933.76
  5. Step 5: Solve for x
    x = 605,978,084,933.76/868,261.52
  6. Step 6: Final answer
    x = 697,921.16

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1.5x scale

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.