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Finding the Fourth Proportional to 1,014.64, 1,523.37 and 830.36

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Solution

The fourth proportional to 1,014.64, 1,523.37 and 830.36 is: 1,246.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.64 : 1,523.37 = 830.36 : x
  2. Step 2: Convert to fraction form
    1,014.64/1,523.37 = 830.36/x
  3. Step 3: Cross multiply
    1,014.64x = 1,523.37 × 830.36
  4. Step 4: Simplify right side
    1,014.64x = 1,264,945.51
  5. Step 5: Solve for x
    x = 1,264,945.51/1,014.64
  6. Step 6: Final answer
    x = 1,246.69

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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.