Home / 868,259.52-1,198,187.64-505,742.40

Finding the Fourth Proportional to 868,259.52, 1,198,187.64 and 505,742.40

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Solution

The fourth proportional to 868,259.52, 1,198,187.64 and 505,742.40 is: 697,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,259.52 : 1,198,187.64 = 505,742.40 : x
  2. Step 2: Convert to fraction form
    868,259.52/1,198,187.64 = 505,742.40/x
  3. Step 3: Cross multiply
    868,259.52x = 1,198,187.64 × 505,742.40
  4. Step 4: Simplify right side
    868,259.52x = 605,974,292,703.94
  5. Step 5: Solve for x
    x = 605,974,292,703.94/868,259.52
  6. Step 6: Final answer
    x = 697,918.40

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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.