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Finding the Fourth Proportional to 846.24, 1,268.60 and 571.64

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Solution

The fourth proportional to 846.24, 1,268.60 and 571.64 is: 856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.24 : 1,268.60 = 571.64 : x
  2. Step 2: Convert to fraction form
    846.24/1,268.60 = 571.64/x
  3. Step 3: Cross multiply
    846.24x = 1,268.60 × 571.64
  4. Step 4: Simplify right side
    846.24x = 725,182.50
  5. Step 5: Solve for x
    x = 725,182.50/846.24
  6. Step 6: Final answer
    x = 856.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.