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Finding the Fourth Proportional to 860,750, 1,291,332.36 and 269,774

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Solution

The fourth proportional to 860,750, 1,291,332.36 and 269,774 is: 404,725.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,750 : 1,291,332.36 = 269,774 : x
  2. Step 2: Convert to fraction form
    860,750/1,291,332.36 = 269,774/x
  3. Step 3: Cross multiply
    860,750x = 1,291,332.36 × 269,774
  4. Step 4: Simplify right side
    860,750x = 348,367,896,086.64
  5. Step 5: Solve for x
    x = 348,367,896,086.64/860,750
  6. Step 6: Final answer
    x = 404,725.99

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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.