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Finding the Fourth Proportional to 719,463.02, 992,866.86 and 397,173.33

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Solution

The fourth proportional to 719,463.02, 992,866.86 and 397,173.33 is: 548,103.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,463.02 : 992,866.86 = 397,173.33 : x
  2. Step 2: Convert to fraction form
    719,463.02/992,866.86 = 397,173.33/x
  3. Step 3: Cross multiply
    719,463.02x = 992,866.86 × 397,173.33
  4. Step 4: Simplify right side
    719,463.02x = 394,340,237,032.84
  5. Step 5: Solve for x
    x = 394,340,237,032.84/719,463.02
  6. Step 6: Final answer
    x = 548,103.56

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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.