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Finding the Fourth Proportional to 654.09, 901.51 and 623.33

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Solution

The fourth proportional to 654.09, 901.51 and 623.33 is: 859.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.09 : 901.51 = 623.33 : x
  2. Step 2: Convert to fraction form
    654.09/901.51 = 623.33/x
  3. Step 3: Cross multiply
    654.09x = 901.51 × 623.33
  4. Step 4: Simplify right side
    654.09x = 561,938.23
  5. Step 5: Solve for x
    x = 561,938.23/654.09
  6. Step 6: Final answer
    x = 859.11

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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.