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Finding the Fourth Proportional to 1,232.94, 1,701.36 and 709.01

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Solution

The fourth proportional to 1,232.94, 1,701.36 and 709.01 is: 978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.94 : 1,701.36 = 709.01 : x
  2. Step 2: Convert to fraction form
    1,232.94/1,701.36 = 709.01/x
  3. Step 3: Cross multiply
    1,232.94x = 1,701.36 × 709.01
  4. Step 4: Simplify right side
    1,232.94x = 1,206,272.75
  5. Step 5: Solve for x
    x = 1,206,272.75/1,232.94
  6. Step 6: Final answer
    x = 978.37

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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.