Home / 892,129.72-1,231,140.24-484,231.64

Finding the Fourth Proportional to 892,129.72, 1,231,140.24 and 484,231.64

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Solution

The fourth proportional to 892,129.72, 1,231,140.24 and 484,231.64 is: 668,240.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,129.72 : 1,231,140.24 = 484,231.64 : x
  2. Step 2: Convert to fraction form
    892,129.72/1,231,140.24 = 484,231.64/x
  3. Step 3: Cross multiply
    892,129.72x = 1,231,140.24 × 484,231.64
  4. Step 4: Simplify right side
    892,129.72x = 596,157,057,485.19
  5. Step 5: Solve for x
    x = 596,157,057,485.19/892,129.72
  6. Step 6: Final answer
    x = 668,240.33

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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.