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Finding the Fourth Proportional to 884.52, 1,216.58 and 709.48

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Solution

The fourth proportional to 884.52, 1,216.58 and 709.48 is: 975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.52 : 1,216.58 = 709.48 : x
  2. Step 2: Convert to fraction form
    884.52/1,216.58 = 709.48/x
  3. Step 3: Cross multiply
    884.52x = 1,216.58 × 709.48
  4. Step 4: Simplify right side
    884.52x = 863,139.18
  5. Step 5: Solve for x
    x = 863,139.18/884.52
  6. Step 6: Final answer
    x = 975.83

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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.