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Finding the Fourth Proportional to 696.83, 1,044.36 and 623.30

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Solution

The fourth proportional to 696.83, 1,044.36 and 623.30 is: 934.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.83 : 1,044.36 = 623.30 : x
  2. Step 2: Convert to fraction form
    696.83/1,044.36 = 623.30/x
  3. Step 3: Cross multiply
    696.83x = 1,044.36 × 623.30
  4. Step 4: Simplify right side
    696.83x = 650,944.37
  5. Step 5: Solve for x
    x = 650,944.37/696.83
  6. Step 6: Final answer
    x = 934.16

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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.