Home / 860,003.43-1,290,005.37-252,791.76

Finding the Fourth Proportional to 860,003.43, 1,290,005.37 and 252,791.76

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Solution

The fourth proportional to 860,003.43, 1,290,005.37 and 252,791.76 is: 379,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,003.43 : 1,290,005.37 = 252,791.76 : x
  2. Step 2: Convert to fraction form
    860,003.43/1,290,005.37 = 252,791.76/x
  3. Step 3: Cross multiply
    860,003.43x = 1,290,005.37 × 252,791.76
  4. Step 4: Simplify right side
    860,003.43x = 326,102,732,729.27
  5. Step 5: Solve for x
    x = 326,102,732,729.27/860,003.43
  6. Step 6: Final answer
    x = 379,187.71

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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.