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Finding the Fourth Proportional to 519,596.42, 717,448.52 and 398,545.97

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Solution

The fourth proportional to 519,596.42, 717,448.52 and 398,545.97 is: 550,304.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,596.42 : 717,448.52 = 398,545.97 : x
  2. Step 2: Convert to fraction form
    519,596.42/717,448.52 = 398,545.97/x
  3. Step 3: Cross multiply
    519,596.42x = 717,448.52 × 398,545.97
  4. Step 4: Simplify right side
    519,596.42x = 285,936,213,737.59
  5. Step 5: Solve for x
    x = 285,936,213,737.59/519,596.42
  6. Step 6: Final answer
    x = 550,304.44

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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.