Home / 2,158,239.74-2,978,354.06-1,191,369.74

Finding the Fourth Proportional to 2,158,239.74, 2,978,354.06 and 1,191,369.74

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Solution

The fourth proportional to 2,158,239.74, 2,978,354.06 and 1,191,369.74 is: 1,644,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,239.74 : 2,978,354.06 = 1,191,369.74 : x
  2. Step 2: Convert to fraction form
    2,158,239.74/2,978,354.06 = 1,191,369.74/x
  3. Step 3: Cross multiply
    2,158,239.74x = 2,978,354.06 × 1,191,369.74
  4. Step 4: Simplify right side
    2,158,239.74x = 3,548,320,902,090.14
  5. Step 5: Solve for x
    x = 3,548,320,902,090.14/2,158,239.74
  6. Step 6: Final answer
    x = 1,644,080.98

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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.