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Finding the Fourth Proportional to 1,302.24, 1,797.06 and 712.80

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Solution

The fourth proportional to 1,302.24, 1,797.06 and 712.80 is: 983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.24 : 1,797.06 = 712.80 : x
  2. Step 2: Convert to fraction form
    1,302.24/1,797.06 = 712.80/x
  3. Step 3: Cross multiply
    1,302.24x = 1,797.06 × 712.80
  4. Step 4: Simplify right side
    1,302.24x = 1,280,944.37
  5. Step 5: Solve for x
    x = 1,280,944.37/1,302.24
  6. Step 6: Final answer
    x = 983.65

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