Home / 791,388.39-1,092,116.94-428,811.96

Finding the Fourth Proportional to 791,388.39, 1,092,116.94 and 428,811.96

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Solution

The fourth proportional to 791,388.39, 1,092,116.94 and 428,811.96 is: 591,761.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,388.39 : 1,092,116.94 = 428,811.96 : x
  2. Step 2: Convert to fraction form
    791,388.39/1,092,116.94 = 428,811.96/x
  3. Step 3: Cross multiply
    791,388.39x = 1,092,116.94 × 428,811.96
  4. Step 4: Simplify right side
    791,388.39x = 468,312,805,590.60
  5. Step 5: Solve for x
    x = 468,312,805,590.60/791,388.39
  6. Step 6: Final answer
    x = 591,761.03

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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.