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Finding the Fourth Proportional to 695,467.01, 959,768.21 and 389,556.47

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Solution

The fourth proportional to 695,467.01, 959,768.21 and 389,556.47 is: 537,601.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,467.01 : 959,768.21 = 389,556.47 : x
  2. Step 2: Convert to fraction form
    695,467.01/959,768.21 = 389,556.47/x
  3. Step 3: Cross multiply
    695,467.01x = 959,768.21 × 389,556.47
  4. Step 4: Simplify right side
    695,467.01x = 373,883,915,905.82
  5. Step 5: Solve for x
    x = 373,883,915,905.82/695,467.01
  6. Step 6: Final answer
    x = 537,601.22

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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.