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Finding the Fourth Proportional to 1,232.42, 1,848.36 and 711.32

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Solution

The fourth proportional to 1,232.42, 1,848.36 and 711.32 is: 1,066.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.42 : 1,848.36 = 711.32 : x
  2. Step 2: Convert to fraction form
    1,232.42/1,848.36 = 711.32/x
  3. Step 3: Cross multiply
    1,232.42x = 1,848.36 × 711.32
  4. Step 4: Simplify right side
    1,232.42x = 1,314,775.44
  5. Step 5: Solve for x
    x = 1,314,775.44/1,232.42
  6. Step 6: Final answer
    x = 1,066.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.