Home / 658,384.41-987,604.06-321,023.26

Finding the Fourth Proportional to 658,384.41, 987,604.06 and 321,023.26

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Solution

The fourth proportional to 658,384.41, 987,604.06 and 321,023.26 is: 481,548.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,384.41 : 987,604.06 = 321,023.26 : x
  2. Step 2: Convert to fraction form
    658,384.41/987,604.06 = 321,023.26/x
  3. Step 3: Cross multiply
    658,384.41x = 987,604.06 × 321,023.26
  4. Step 4: Simplify right side
    658,384.41x = 317,043,871,658.87
  5. Step 5: Solve for x
    x = 317,043,871,658.87/658,384.41
  6. Step 6: Final answer
    x = 481,548.27

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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.