Home / 868,261.02-1,198,189.71-505,743.90

Finding the Fourth Proportional to 868,261.02, 1,198,189.71 and 505,743.90

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Solution

The fourth proportional to 868,261.02, 1,198,189.71 and 505,743.90 is: 697,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,261.02 : 1,198,189.71 = 505,743.90 : x
  2. Step 2: Convert to fraction form
    868,261.02/1,198,189.71 = 505,743.90/x
  3. Step 3: Cross multiply
    868,261.02x = 1,198,189.71 × 505,743.90
  4. Step 4: Simplify right side
    868,261.02x = 605,977,136,875.27
  5. Step 5: Solve for x
    x = 605,977,136,875.27/868,261.02
  6. Step 6: Final answer
    x = 697,920.47

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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.