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Finding the Fourth Proportional to 1,232.72, 1,700.52 and 900.60

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Solution

The fourth proportional to 1,232.72, 1,700.52 and 900.60 is: 1,242.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.72 : 1,700.52 = 900.60 : x
  2. Step 2: Convert to fraction form
    1,232.72/1,700.52 = 900.60/x
  3. Step 3: Cross multiply
    1,232.72x = 1,700.52 × 900.60
  4. Step 4: Simplify right side
    1,232.72x = 1,531,488.31
  5. Step 5: Solve for x
    x = 1,531,488.31/1,232.72
  6. Step 6: Final answer
    x = 1,242.37

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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.