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Finding the Fourth Proportional to 2,789,978.36, 3,850,590.35 and 1,702,881.66

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Solution

The fourth proportional to 2,789,978.36, 3,850,590.35 and 1,702,881.66 is: 2,350,233.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789,978.36 : 3,850,590.35 = 1,702,881.66 : x
  2. Step 2: Convert to fraction form
    2,789,978.36/3,850,590.35 = 1,702,881.66/x
  3. Step 3: Cross multiply
    2,789,978.36x = 3,850,590.35 × 1,702,881.66
  4. Step 4: Simplify right side
    2,789,978.36x = 6,557,099,687,187.98
  5. Step 5: Solve for x
    x = 6,557,099,687,187.98/2,789,978.36
  6. Step 6: Final answer
    x = 2,350,233.17

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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.