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Finding the Fourth Proportional to 994,806.61, 1,492,064.57 and 489,231.90

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Solution

The fourth proportional to 994,806.61, 1,492,064.57 and 489,231.90 is: 733,776.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,806.61 : 1,492,064.57 = 489,231.90 : x
  2. Step 2: Convert to fraction form
    994,806.61/1,492,064.57 = 489,231.90/x
  3. Step 3: Cross multiply
    994,806.61x = 1,492,064.57 × 489,231.90
  4. Step 4: Simplify right side
    994,806.61x = 729,965,580,773.62
  5. Step 5: Solve for x
    x = 729,965,580,773.62/994,806.61
  6. Step 6: Final answer
    x = 733,776.37

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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.