Home / 644,915.28-887,634-567,930.36

Finding the Fourth Proportional to 644,915.28, 887,634 and 567,930.36

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Solution

The fourth proportional to 644,915.28, 887,634 and 567,930.36 is: 781,675.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,915.28 : 887,634 = 567,930.36 : x
  2. Step 2: Convert to fraction form
    644,915.28/887,634 = 567,930.36/x
  3. Step 3: Cross multiply
    644,915.28x = 887,634 × 567,930.36
  4. Step 4: Simplify right side
    644,915.28x = 504,114,297,168.24
  5. Step 5: Solve for x
    x = 504,114,297,168.24/644,915.28
  6. Step 6: Final answer
    x = 781,675.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.