Home / 864,321.72-1,296,433.32-265,281.96

Finding the Fourth Proportional to 864,321.72, 1,296,433.32 and 265,281.96

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Solution

The fourth proportional to 864,321.72, 1,296,433.32 and 265,281.96 is: 397,907.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,321.72 : 1,296,433.32 = 265,281.96 : x
  2. Step 2: Convert to fraction form
    864,321.72/1,296,433.32 = 265,281.96/x
  3. Step 3: Cross multiply
    864,321.72x = 1,296,433.32 × 265,281.96
  4. Step 4: Simplify right side
    864,321.72x = 343,920,372,138.91
  5. Step 5: Solve for x
    x = 343,920,372,138.91/864,321.72
  6. Step 6: Final answer
    x = 397,907.82

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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.