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Finding the Fourth Proportional to 883,570, 1,325,355 and 218,722

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Solution

The fourth proportional to 883,570, 1,325,355 and 218,722 is: 328,083

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,570 : 1,325,355 = 218,722 : x
  2. Step 2: Convert to fraction form
    883,570/1,325,355 = 218,722/x
  3. Step 3: Cross multiply
    883,570x = 1,325,355 × 218,722
  4. Step 4: Simplify right side
    883,570x = 289,884,296,310
  5. Step 5: Solve for x
    x = 289,884,296,310/883,570
  6. Step 6: Final answer
    x = 328,083

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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.