Home / 647,865.27-971,381.63-269,047.31

Finding the Fourth Proportional to 647,865.27, 971,381.63 and 269,047.31

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Solution

The fourth proportional to 647,865.27, 971,381.63 and 269,047.31 is: 403,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,865.27 : 971,381.63 = 269,047.31 : x
  2. Step 2: Convert to fraction form
    647,865.27/971,381.63 = 269,047.31/x
  3. Step 3: Cross multiply
    647,865.27x = 971,381.63 × 269,047.31
  4. Step 4: Simplify right side
    647,865.27x = 261,347,610,350.63
  5. Step 5: Solve for x
    x = 261,347,610,350.63/647,865.27
  6. Step 6: Final answer
    x = 403,398.09

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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.