Home / 492,069.08-678,973.09-274,230.18

Finding the Fourth Proportional to 492,069.08, 678,973.09 and 274,230.18

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Solution

The fourth proportional to 492,069.08, 678,973.09 and 274,230.18 is: 378,391.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,069.08 : 678,973.09 = 274,230.18 : x
  2. Step 2: Convert to fraction form
    492,069.08/678,973.09 = 274,230.18/x
  3. Step 3: Cross multiply
    492,069.08x = 678,973.09 × 274,230.18
  4. Step 4: Simplify right side
    492,069.08x = 186,194,912,685.86
  5. Step 5: Solve for x
    x = 186,194,912,685.86/492,069.08
  6. Step 6: Final answer
    x = 378,391.82

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1.5x scale

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.