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Finding the Fourth Proportional to 886,682.22, 1,330,210.22 and 287,596.77

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Solution

The fourth proportional to 886,682.22, 1,330,210.22 and 287,596.77 is: 431,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,682.22 : 1,330,210.22 = 287,596.77 : x
  2. Step 2: Convert to fraction form
    886,682.22/1,330,210.22 = 287,596.77/x
  3. Step 3: Cross multiply
    886,682.22x = 1,330,210.22 × 287,596.77
  4. Step 4: Simplify right side
    886,682.22x = 382,564,161,255.01
  5. Step 5: Solve for x
    x = 382,564,161,255.01/886,682.22
  6. Step 6: Final answer
    x = 431,455.77

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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.