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Finding the Fourth Proportional to 1,124.51, 1,686.30 and 466.49

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Solution

The fourth proportional to 1,124.51, 1,686.30 and 466.49 is: 699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.51 : 1,686.30 = 466.49 : x
  2. Step 2: Convert to fraction form
    1,124.51/1,686.30 = 466.49/x
  3. Step 3: Cross multiply
    1,124.51x = 1,686.30 × 466.49
  4. Step 4: Simplify right side
    1,124.51x = 786,633.66
  5. Step 5: Solve for x
    x = 786,633.66/1,124.51
  6. Step 6: Final answer
    x = 699.54

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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.