Home / 1,203,984.24-1,661,434.72-687,636.64

Finding the Fourth Proportional to 1,203,984.24, 1,661,434.72 and 687,636.64

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Solution

The fourth proportional to 1,203,984.24, 1,661,434.72 and 687,636.64 is: 948,902.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,984.24 : 1,661,434.72 = 687,636.64 : x
  2. Step 2: Convert to fraction form
    1,203,984.24/1,661,434.72 = 687,636.64/x
  3. Step 3: Cross multiply
    1,203,984.24x = 1,661,434.72 × 687,636.64
  4. Step 4: Simplify right side
    1,203,984.24x = 1,142,463,388,440.14
  5. Step 5: Solve for x
    x = 1,142,463,388,440.14/1,203,984.24
  6. Step 6: Final answer
    x = 948,902.28

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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.