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Finding the Fourth Proportional to 623.94, 860.37 and 573.30

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Solution

The fourth proportional to 623.94, 860.37 and 573.30 is: 790.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.94 : 860.37 = 573.30 : x
  2. Step 2: Convert to fraction form
    623.94/860.37 = 573.30/x
  3. Step 3: Cross multiply
    623.94x = 860.37 × 573.30
  4. Step 4: Simplify right side
    623.94x = 493,250.12
  5. Step 5: Solve for x
    x = 493,250.12/623.94
  6. Step 6: Final answer
    x = 790.54

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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.