Home / 994,970.78-1,492,310.36-489,396.05

Finding the Fourth Proportional to 994,970.78, 1,492,310.36 and 489,396.05

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Solution

The fourth proportional to 994,970.78, 1,492,310.36 and 489,396.05 is: 734,022.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,970.78 : 1,492,310.36 = 489,396.05 : x
  2. Step 2: Convert to fraction form
    994,970.78/1,492,310.36 = 489,396.05/x
  3. Step 3: Cross multiply
    994,970.78x = 1,492,310.36 × 489,396.05
  4. Step 4: Simplify right side
    994,970.78x = 730,330,795,558.08
  5. Step 5: Solve for x
    x = 730,330,795,558.08/994,970.78
  6. Step 6: Final answer
    x = 734,022.36

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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.