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Finding the Fourth Proportional to 975.08, 1,462.56 and 325.64

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Solution

The fourth proportional to 975.08, 1,462.56 and 325.64 is: 488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.08 : 1,462.56 = 325.64 : x
  2. Step 2: Convert to fraction form
    975.08/1,462.56 = 325.64/x
  3. Step 3: Cross multiply
    975.08x = 1,462.56 × 325.64
  4. Step 4: Simplify right side
    975.08x = 476,268.04
  5. Step 5: Solve for x
    x = 476,268.04/975.08
  6. Step 6: Final answer
    x = 488.44

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1.5x scale

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.