Home / 492,004.79-678,979.73-277,132.04

Finding the Fourth Proportional to 492,004.79, 678,979.73 and 277,132.04

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Solution

The fourth proportional to 492,004.79, 678,979.73 and 277,132.04 is: 382,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,004.79 : 678,979.73 = 277,132.04 : x
  2. Step 2: Convert to fraction form
    492,004.79/678,979.73 = 277,132.04/x
  3. Step 3: Cross multiply
    492,004.79x = 678,979.73 × 277,132.04
  4. Step 4: Simplify right side
    492,004.79x = 188,167,037,693.55
  5. Step 5: Solve for x
    x = 188,167,037,693.55/492,004.79
  6. Step 6: Final answer
    x = 382,449.61

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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.