Home / 547,531.98-821,288.24-281,135.94

Finding the Fourth Proportional to 547,531.98, 821,288.24 and 281,135.94

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Solution

The fourth proportional to 547,531.98, 821,288.24 and 281,135.94 is: 421,698.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,531.98 : 821,288.24 = 281,135.94 : x
  2. Step 2: Convert to fraction form
    547,531.98/821,288.24 = 281,135.94/x
  3. Step 3: Cross multiply
    547,531.98x = 821,288.24 × 281,135.94
  4. Step 4: Simplify right side
    547,531.98x = 230,893,637,256.90
  5. Step 5: Solve for x
    x = 230,893,637,256.90/547,531.98
  6. Step 6: Final answer
    x = 421,698.91

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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.