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Finding the Fourth Proportional to 844.81, 1,259.90 and 773.93

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Solution

The fourth proportional to 844.81, 1,259.90 and 773.93 is: 1,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.81 : 1,259.90 = 773.93 : x
  2. Step 2: Convert to fraction form
    844.81/1,259.90 = 773.93/x
  3. Step 3: Cross multiply
    844.81x = 1,259.90 × 773.93
  4. Step 4: Simplify right side
    844.81x = 975,074.41
  5. Step 5: Solve for x
    x = 975,074.41/844.81
  6. Step 6: Final answer
    x = 1,154.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.