Home / 860,202.88-1,290,369.94-261,213.66

Finding the Fourth Proportional to 860,202.88, 1,290,369.94 and 261,213.66

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Solution

The fourth proportional to 860,202.88, 1,290,369.94 and 261,213.66 is: 391,840.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,202.88 : 1,290,369.94 = 261,213.66 : x
  2. Step 2: Convert to fraction form
    860,202.88/1,290,369.94 = 261,213.66/x
  3. Step 3: Cross multiply
    860,202.88x = 1,290,369.94 × 261,213.66
  4. Step 4: Simplify right side
    860,202.88x = 337,062,254,128.35
  5. Step 5: Solve for x
    x = 337,062,254,128.35/860,202.88
  6. Step 6: Final answer
    x = 391,840.42

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1.5x scale

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.