Home / 547,531.48-821,287.49-281,135.44

Finding the Fourth Proportional to 547,531.48, 821,287.49 and 281,135.44

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Solution

The fourth proportional to 547,531.48, 821,287.49 and 281,135.44 is: 421,698.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,531.48 : 821,287.49 = 281,135.44 : x
  2. Step 2: Convert to fraction form
    547,531.48/821,287.49 = 281,135.44/x
  3. Step 3: Cross multiply
    547,531.48x = 821,287.49 × 281,135.44
  4. Step 4: Simplify right side
    547,531.48x = 230,893,015,761.21
  5. Step 5: Solve for x
    x = 230,893,015,761.21/547,531.48
  6. Step 6: Final answer
    x = 421,698.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.