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Finding the Fourth Proportional to 883.64, 1,219.41 and 510.62

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Solution

The fourth proportional to 883.64, 1,219.41 and 510.62 is: 704.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.64 : 1,219.41 = 510.62 : x
  2. Step 2: Convert to fraction form
    883.64/1,219.41 = 510.62/x
  3. Step 3: Cross multiply
    883.64x = 1,219.41 × 510.62
  4. Step 4: Simplify right side
    883.64x = 622,649.04
  5. Step 5: Solve for x
    x = 622,649.04/883.64
  6. Step 6: Final answer
    x = 704.65

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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.