Home / 389,821.35-537,962.31-228,792.54

Finding the Fourth Proportional to 389,821.35, 537,962.31 and 228,792.54

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Solution

The fourth proportional to 389,821.35, 537,962.31 and 228,792.54 is: 315,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,821.35 : 537,962.31 = 228,792.54 : x
  2. Step 2: Convert to fraction form
    389,821.35/537,962.31 = 228,792.54/x
  3. Step 3: Cross multiply
    389,821.35x = 537,962.31 × 228,792.54
  4. Step 4: Simplify right side
    389,821.35x = 123,081,763,329.17
  5. Step 5: Solve for x
    x = 123,081,763,329.17/389,821.35
  6. Step 6: Final answer
    x = 315,738.90

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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.