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Finding the Fourth Proportional to 942.79, 1,300.85 and 544.37

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Solution

The fourth proportional to 942.79, 1,300.85 and 544.37 is: 751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.79 : 1,300.85 = 544.37 : x
  2. Step 2: Convert to fraction form
    942.79/1,300.85 = 544.37/x
  3. Step 3: Cross multiply
    942.79x = 1,300.85 × 544.37
  4. Step 4: Simplify right side
    942.79x = 708,140.99
  5. Step 5: Solve for x
    x = 708,140.99/942.79
  6. Step 6: Final answer
    x = 751.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.