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Finding the Fourth Proportional to 623.92, 860.52 and 614.32

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Solution

The fourth proportional to 623.92, 860.52 and 614.32 is: 847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.92 : 860.52 = 614.32 : x
  2. Step 2: Convert to fraction form
    623.92/860.52 = 614.32/x
  3. Step 3: Cross multiply
    623.92x = 860.52 × 614.32
  4. Step 4: Simplify right side
    623.92x = 528,634.65
  5. Step 5: Solve for x
    x = 528,634.65/623.92
  6. Step 6: Final answer
    x = 847.28

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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.