Home / 791,272.35-1,091,954.39-428,705.42

Finding the Fourth Proportional to 791,272.35, 1,091,954.39 and 428,705.42

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Solution

The fourth proportional to 791,272.35, 1,091,954.39 and 428,705.42 is: 591,612.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,272.35 : 1,091,954.39 = 428,705.42 : x
  2. Step 2: Convert to fraction form
    791,272.35/1,091,954.39 = 428,705.42/x
  3. Step 3: Cross multiply
    791,272.35x = 1,091,954.39 × 428,705.42
  4. Step 4: Simplify right side
    791,272.35x = 468,126,757,782.50
  5. Step 5: Solve for x
    x = 468,126,757,782.50/791,272.35
  6. Step 6: Final answer
    x = 591,612.68

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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.