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Finding the Fourth Proportional to 489,398.52, 734,010.02 and 134,365.80

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Solution

The fourth proportional to 489,398.52, 734,010.02 and 134,365.80 is: 201,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,398.52 : 734,010.02 = 134,365.80 : x
  2. Step 2: Convert to fraction form
    489,398.52/734,010.02 = 134,365.80/x
  3. Step 3: Cross multiply
    489,398.52x = 734,010.02 × 134,365.80
  4. Step 4: Simplify right side
    489,398.52x = 98,625,843,545.32
  5. Step 5: Solve for x
    x = 98,625,843,545.32/489,398.52
  6. Step 6: Final answer
    x = 201,524.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.