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Finding the Fourth Proportional to 492,544.80, 739,400.40 and 489,045.60

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Solution

The fourth proportional to 492,544.80, 739,400.40 and 489,045.60 is: 734,147.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,544.80 : 739,400.40 = 489,045.60 : x
  2. Step 2: Convert to fraction form
    492,544.80/739,400.40 = 489,045.60/x
  3. Step 3: Cross multiply
    492,544.80x = 739,400.40 × 489,045.60
  4. Step 4: Simplify right side
    492,544.80x = 361,600,512,258.24
  5. Step 5: Solve for x
    x = 361,600,512,258.24/492,544.80
  6. Step 6: Final answer
    x = 734,147.46

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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.