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Finding the Fourth Proportional to 623.54, 860.01 and 476.66

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Solution

The fourth proportional to 623.54, 860.01 and 476.66 is: 657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.54 : 860.01 = 476.66 : x
  2. Step 2: Convert to fraction form
    623.54/860.01 = 476.66/x
  3. Step 3: Cross multiply
    623.54x = 860.01 × 476.66
  4. Step 4: Simplify right side
    623.54x = 409,932.37
  5. Step 5: Solve for x
    x = 409,932.37/623.54
  6. Step 6: Final answer
    x = 657.43

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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.