Home / 1,558,028-2,150,078.64-842,636

Finding the Fourth Proportional to 1,558,028, 2,150,078.64 and 842,636

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Solution

The fourth proportional to 1,558,028, 2,150,078.64 and 842,636 is: 1,162,837.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558,028 : 2,150,078.64 = 842,636 : x
  2. Step 2: Convert to fraction form
    1,558,028/2,150,078.64 = 842,636/x
  3. Step 3: Cross multiply
    1,558,028x = 2,150,078.64 × 842,636
  4. Step 4: Simplify right side
    1,558,028x = 1,811,733,664,895.04
  5. Step 5: Solve for x
    x = 1,811,733,664,895.04/1,558,028
  6. Step 6: Final answer
    x = 1,162,837.68

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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.