Home / 1,171,212.32-1,616,242.65-647,942.25

Finding the Fourth Proportional to 1,171,212.32, 1,616,242.65 and 647,942.25

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Solution

The fourth proportional to 1,171,212.32, 1,616,242.65 and 647,942.25 is: 894,143.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,212.32 : 1,616,242.65 = 647,942.25 : x
  2. Step 2: Convert to fraction form
    1,171,212.32/1,616,242.65 = 647,942.25/x
  3. Step 3: Cross multiply
    1,171,212.32x = 1,616,242.65 × 647,942.25
  4. Step 4: Simplify right side
    1,171,212.32x = 1,047,231,902,818.09
  5. Step 5: Solve for x
    x = 1,047,231,902,818.09/1,171,212.32
  6. Step 6: Final answer
    x = 894,143.51

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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.