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Finding the Fourth Proportional to 382,866.68, 528,265.67 and 321,844.86

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Solution

The fourth proportional to 382,866.68, 528,265.67 and 321,844.86 is: 444,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,866.68 : 528,265.67 = 321,844.86 : x
  2. Step 2: Convert to fraction form
    382,866.68/528,265.67 = 321,844.86/x
  3. Step 3: Cross multiply
    382,866.68x = 528,265.67 × 321,844.86
  4. Step 4: Simplify right side
    382,866.68x = 170,019,588,994.73
  5. Step 5: Solve for x
    x = 170,019,588,994.73/382,866.68
  6. Step 6: Final answer
    x = 444,069.95

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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.