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Finding the Fourth Proportional to 955.04, 1,315.46 and 674.77

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Solution

The fourth proportional to 955.04, 1,315.46 and 674.77 is: 929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.04 : 1,315.46 = 674.77 : x
  2. Step 2: Convert to fraction form
    955.04/1,315.46 = 674.77/x
  3. Step 3: Cross multiply
    955.04x = 1,315.46 × 674.77
  4. Step 4: Simplify right side
    955.04x = 887,630.01
  5. Step 5: Solve for x
    x = 887,630.01/955.04
  6. Step 6: Final answer
    x = 929.42

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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.