Home / 805,620.50-1,208,172.77-265,755.96

Finding the Fourth Proportional to 805,620.50, 1,208,172.77 and 265,755.96

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Solution

The fourth proportional to 805,620.50, 1,208,172.77 and 265,755.96 is: 398,548.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,620.50 : 1,208,172.77 = 265,755.96 : x
  2. Step 2: Convert to fraction form
    805,620.50/1,208,172.77 = 265,755.96/x
  3. Step 3: Cross multiply
    805,620.50x = 1,208,172.77 × 265,755.96
  4. Step 4: Simplify right side
    805,620.50x = 321,079,114,337.21
  5. Step 5: Solve for x
    x = 321,079,114,337.21/805,620.50
  6. Step 6: Final answer
    x = 398,548.84

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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.