Home / 722,198.08-996,621.19-399,901.29

Finding the Fourth Proportional to 722,198.08, 996,621.19 and 399,901.29

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Solution

The fourth proportional to 722,198.08, 996,621.19 and 399,901.29 is: 551,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,198.08 : 996,621.19 = 399,901.29 : x
  2. Step 2: Convert to fraction form
    722,198.08/996,621.19 = 399,901.29/x
  3. Step 3: Cross multiply
    722,198.08x = 996,621.19 × 399,901.29
  4. Step 4: Simplify right side
    722,198.08x = 398,550,099,522.34
  5. Step 5: Solve for x
    x = 398,550,099,522.34/722,198.08
  6. Step 6: Final answer
    x = 551,857.05

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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.