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Finding the Fourth Proportional to 1,558,009, 2,150,052.42 and 842,617

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Solution

The fourth proportional to 1,558,009, 2,150,052.42 and 842,617 is: 1,162,811.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558,009 : 2,150,052.42 = 842,617 : x
  2. Step 2: Convert to fraction form
    1,558,009/2,150,052.42 = 842,617/x
  3. Step 3: Cross multiply
    1,558,009x = 2,150,052.42 × 842,617
  4. Step 4: Simplify right side
    1,558,009x = 1,811,670,719,983.14
  5. Step 5: Solve for x
    x = 1,811,670,719,983.14/1,558,009
  6. Step 6: Final answer
    x = 1,162,811.46

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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.