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Finding the Fourth Proportional to 623.10, 855.27 and 567.51

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Solution

The fourth proportional to 623.10, 855.27 and 567.51 is: 778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.10 : 855.27 = 567.51 : x
  2. Step 2: Convert to fraction form
    623.10/855.27 = 567.51/x
  3. Step 3: Cross multiply
    623.10x = 855.27 × 567.51
  4. Step 4: Simplify right side
    623.10x = 485,374.28
  5. Step 5: Solve for x
    x = 485,374.28/623.10
  6. Step 6: Final answer
    x = 778.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.