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Finding the Fourth Proportional to 382,989.04, 528,503.84 and 210,873.44

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Solution

The fourth proportional to 382,989.04, 528,503.84 and 210,873.44 is: 290,993.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,989.04 : 528,503.84 = 210,873.44 : x
  2. Step 2: Convert to fraction form
    382,989.04/528,503.84 = 210,873.44/x
  3. Step 3: Cross multiply
    382,989.04x = 528,503.84 × 210,873.44
  4. Step 4: Simplify right side
    382,989.04x = 111,447,422,794.01
  5. Step 5: Solve for x
    x = 111,447,422,794.01/382,989.04
  6. Step 6: Final answer
    x = 290,993.77

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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.