Home / 791,321.36-1,092,022-428,754.40

Finding the Fourth Proportional to 791,321.36, 1,092,022 and 428,754.40

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Solution

The fourth proportional to 791,321.36, 1,092,022 and 428,754.40 is: 591,680.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,321.36 : 1,092,022 = 428,754.40 : x
  2. Step 2: Convert to fraction form
    791,321.36/1,092,022 = 428,754.40/x
  3. Step 3: Cross multiply
    791,321.36x = 1,092,022 × 428,754.40
  4. Step 4: Simplify right side
    791,321.36x = 468,209,237,396.80
  5. Step 5: Solve for x
    x = 468,209,237,396.80/791,321.36
  6. Step 6: Final answer
    x = 591,680.27

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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.