Home / 828,369.01-1,145,186.40-820,791.06

Finding the Fourth Proportional to 828,369.01, 1,145,186.40 and 820,791.06

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Solution

The fourth proportional to 828,369.01, 1,145,186.40 and 820,791.06 is: 1,134,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,369.01 : 1,145,186.40 = 820,791.06 : x
  2. Step 2: Convert to fraction form
    828,369.01/1,145,186.40 = 820,791.06/x
  3. Step 3: Cross multiply
    828,369.01x = 1,145,186.40 × 820,791.06
  4. Step 4: Simplify right side
    828,369.01x = 939,958,759,153.58
  5. Step 5: Solve for x
    x = 939,958,759,153.58/828,369.01
  6. Step 6: Final answer
    x = 1,134,710.19

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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.