Home / 1,387,022.44-1,913,550.32-870,474.92

Finding the Fourth Proportional to 1,387,022.44, 1,913,550.32 and 870,474.92

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Solution

The fourth proportional to 1,387,022.44, 1,913,550.32 and 870,474.92 is: 1,200,916.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,022.44 : 1,913,550.32 = 870,474.92 : x
  2. Step 2: Convert to fraction form
    1,387,022.44/1,913,550.32 = 870,474.92/x
  3. Step 3: Cross multiply
    1,387,022.44x = 1,913,550.32 × 870,474.92
  4. Step 4: Simplify right side
    1,387,022.44x = 1,665,697,561,717.97
  5. Step 5: Solve for x
    x = 1,665,697,561,717.97/1,387,022.44
  6. Step 6: Final answer
    x = 1,200,916.09

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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.