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Finding the Fourth Proportional to 936.73, 1,406.49 and 526.69

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Solution

The fourth proportional to 936.73, 1,406.49 and 526.69 is: 790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.73 : 1,406.49 = 526.69 : x
  2. Step 2: Convert to fraction form
    936.73/1,406.49 = 526.69/x
  3. Step 3: Cross multiply
    936.73x = 1,406.49 × 526.69
  4. Step 4: Simplify right side
    936.73x = 740,784.22
  5. Step 5: Solve for x
    x = 740,784.22/936.73
  6. Step 6: Final answer
    x = 790.82

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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.