Home / 828,372.72-1,242,413.29-221,168.58

Finding the Fourth Proportional to 828,372.72, 1,242,413.29 and 221,168.58

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Solution

The fourth proportional to 828,372.72, 1,242,413.29 and 221,168.58 is: 331,713.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,372.72 : 1,242,413.29 = 221,168.58 : x
  2. Step 2: Convert to fraction form
    828,372.72/1,242,413.29 = 221,168.58/x
  3. Step 3: Cross multiply
    828,372.72x = 1,242,413.29 × 221,168.58
  4. Step 4: Simplify right side
    828,372.72x = 274,782,777,495.77
  5. Step 5: Solve for x
    x = 274,782,777,495.77/828,372.72
  6. Step 6: Final answer
    x = 331,713.94

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1.5x scale

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.