Home / 492,068.83-678,972.75-274,229.93

Finding the Fourth Proportional to 492,068.83, 678,972.75 and 274,229.93

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Solution

The fourth proportional to 492,068.83, 678,972.75 and 274,229.93 is: 378,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,068.83 : 678,972.75 = 274,229.93 : x
  2. Step 2: Convert to fraction form
    492,068.83/678,972.75 = 274,229.93/x
  3. Step 3: Cross multiply
    492,068.83x = 678,972.75 × 274,229.93
  4. Step 4: Simplify right side
    492,068.83x = 186,194,646,309.54
  5. Step 5: Solve for x
    x = 186,194,646,309.54/492,068.83
  6. Step 6: Final answer
    x = 378,391.47

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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.