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Finding the Fourth Proportional to 958.60, 1,323.26 and 585.70

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Solution

The fourth proportional to 958.60, 1,323.26 and 585.70 is: 808.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.60 : 1,323.26 = 585.70 : x
  2. Step 2: Convert to fraction form
    958.60/1,323.26 = 585.70/x
  3. Step 3: Cross multiply
    958.60x = 1,323.26 × 585.70
  4. Step 4: Simplify right side
    958.60x = 775,033.38
  5. Step 5: Solve for x
    x = 775,033.38/958.60
  6. Step 6: Final answer
    x = 808.51

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1.5x scale

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.