Home / 492,068.08-678,971.72-274,229.18

Finding the Fourth Proportional to 492,068.08, 678,971.72 and 274,229.18

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Solution

The fourth proportional to 492,068.08, 678,971.72 and 274,229.18 is: 378,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,068.08 : 678,971.72 = 274,229.18 : x
  2. Step 2: Convert to fraction form
    492,068.08/678,971.72 = 274,229.18/x
  3. Step 3: Cross multiply
    492,068.08x = 678,971.72 × 274,229.18
  4. Step 4: Simplify right side
    492,068.08x = 186,193,853,252.79
  5. Step 5: Solve for x
    x = 186,193,853,252.79/492,068.08
  6. Step 6: Final answer
    x = 378,390.44

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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.