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Finding the Fourth Proportional to 883.43, 1,219.01 and 529.27

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Solution

The fourth proportional to 883.43, 1,219.01 and 529.27 is: 730.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.43 : 1,219.01 = 529.27 : x
  2. Step 2: Convert to fraction form
    883.43/1,219.01 = 529.27/x
  3. Step 3: Cross multiply
    883.43x = 1,219.01 × 529.27
  4. Step 4: Simplify right side
    883.43x = 645,185.42
  5. Step 5: Solve for x
    x = 645,185.42/883.43
  6. Step 6: Final answer
    x = 730.32

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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.