Home / 684,120.64-1,025,208.96-323,907.16

Finding the Fourth Proportional to 684,120.64, 1,025,208.96 and 323,907.16

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Solution

The fourth proportional to 684,120.64, 1,025,208.96 and 323,907.16 is: 485,400.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,120.64 : 1,025,208.96 = 323,907.16 : x
  2. Step 2: Convert to fraction form
    684,120.64/1,025,208.96 = 323,907.16/x
  3. Step 3: Cross multiply
    684,120.64x = 1,025,208.96 × 323,907.16
  4. Step 4: Simplify right side
    684,120.64x = 332,072,522,640.15
  5. Step 5: Solve for x
    x = 332,072,522,640.15/684,120.64
  6. Step 6: Final answer
    x = 485,400.53

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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.