Home / 2,378,906.78-3,282,894.96-1,291,178.76

Finding the Fourth Proportional to 2,378,906.78, 3,282,894.96 and 1,291,178.76

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Solution

The fourth proportional to 2,378,906.78, 3,282,894.96 and 1,291,178.76 is: 1,781,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378,906.78 : 3,282,894.96 = 1,291,178.76 : x
  2. Step 2: Convert to fraction form
    2,378,906.78/3,282,894.96 = 1,291,178.76/x
  3. Step 3: Cross multiply
    2,378,906.78x = 3,282,894.96 × 1,291,178.76
  4. Step 4: Simplify right side
    2,378,906.78x = 4,238,804,243,663.05
  5. Step 5: Solve for x
    x = 4,238,804,243,663.05/2,378,906.78
  6. Step 6: Final answer
    x = 1,781,828.64

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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.