Home / 647,867.77-971,385.37-269,049.81

Finding the Fourth Proportional to 647,867.77, 971,385.37 and 269,049.81

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Solution

The fourth proportional to 647,867.77, 971,385.37 and 269,049.81 is: 403,401.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,867.77 : 971,385.37 = 269,049.81 : x
  2. Step 2: Convert to fraction form
    647,867.77/971,385.37 = 269,049.81/x
  3. Step 3: Cross multiply
    647,867.77x = 971,385.37 × 269,049.81
  4. Step 4: Simplify right side
    647,867.77x = 261,351,049,235.28
  5. Step 5: Solve for x
    x = 261,351,049,235.28/647,867.77
  6. Step 6: Final answer
    x = 403,401.84

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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.