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Finding the Fourth Proportional to 1,615,162, 2,228,969.64 and 899,816.08

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Solution

The fourth proportional to 1,615,162, 2,228,969.64 and 899,816.08 is: 1,241,771.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,162 : 2,228,969.64 = 899,816.08 : x
  2. Step 2: Convert to fraction form
    1,615,162/2,228,969.64 = 899,816.08/x
  3. Step 3: Cross multiply
    1,615,162x = 2,228,969.64 × 899,816.08
  4. Step 4: Simplify right side
    1,615,162x = 2,005,662,723,903.81
  5. Step 5: Solve for x
    x = 2,005,662,723,903.81/1,615,162
  6. Step 6: Final answer
    x = 1,241,771.86

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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.