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Finding the Fourth Proportional to 941.59, 1,413.33 and 770.29

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Solution

The fourth proportional to 941.59, 1,413.33 and 770.29 is: 1,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.59 : 1,413.33 = 770.29 : x
  2. Step 2: Convert to fraction form
    941.59/1,413.33 = 770.29/x
  3. Step 3: Cross multiply
    941.59x = 1,413.33 × 770.29
  4. Step 4: Simplify right side
    941.59x = 1,088,673.97
  5. Step 5: Solve for x
    x = 1,088,673.97/941.59
  6. Step 6: Final answer
    x = 1,156.21

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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.