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Finding the Fourth Proportional to 719,558.84, 992,992.71 and 397,269.56

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Solution

The fourth proportional to 719,558.84, 992,992.71 and 397,269.56 is: 548,232.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,558.84 : 992,992.71 = 397,269.56 : x
  2. Step 2: Convert to fraction form
    719,558.84/992,992.71 = 397,269.56/x
  3. Step 3: Cross multiply
    719,558.84x = 992,992.71 × 397,269.56
  4. Step 4: Simplify right side
    719,558.84x = 394,485,776,984.91
  5. Step 5: Solve for x
    x = 394,485,776,984.91/719,558.84
  6. Step 6: Final answer
    x = 548,232.83

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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.