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Finding the Fourth Proportional to 490,476.26, 735,413.31 and 190,606.70

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Solution

The fourth proportional to 490,476.26, 735,413.31 and 190,606.70 is: 285,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,476.26 : 735,413.31 = 190,606.70 : x
  2. Step 2: Convert to fraction form
    490,476.26/735,413.31 = 190,606.70/x
  3. Step 3: Cross multiply
    490,476.26x = 735,413.31 × 190,606.70
  4. Step 4: Simplify right side
    490,476.26x = 140,174,705,993.71
  5. Step 5: Solve for x
    x = 140,174,705,993.71/490,476.26
  6. Step 6: Final answer
    x = 285,793.05

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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.