Home / 456,313.60-684,517.32-172,243.44

Finding the Fourth Proportional to 456,313.60, 684,517.32 and 172,243.44

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Solution

The fourth proportional to 456,313.60, 684,517.32 and 172,243.44 is: 258,382.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,313.60 : 684,517.32 = 172,243.44 : x
  2. Step 2: Convert to fraction form
    456,313.60/684,517.32 = 172,243.44/x
  3. Step 3: Cross multiply
    456,313.60x = 684,517.32 × 172,243.44
  4. Step 4: Simplify right side
    456,313.60x = 117,903,617,936.38
  5. Step 5: Solve for x
    x = 117,903,617,936.38/456,313.60
  6. Step 6: Final answer
    x = 258,382.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.