Home / 1,216,365.12-1,824,845.20-857,236.64

Finding the Fourth Proportional to 1,216,365.12, 1,824,845.20 and 857,236.64

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Solution

The fourth proportional to 1,216,365.12, 1,824,845.20 and 857,236.64 is: 1,286,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,365.12 : 1,824,845.20 = 857,236.64 : x
  2. Step 2: Convert to fraction form
    1,216,365.12/1,824,845.20 = 857,236.64/x
  3. Step 3: Cross multiply
    1,216,365.12x = 1,824,845.20 × 857,236.64
  4. Step 4: Simplify right side
    1,216,365.12x = 1,564,324,167,768.13
  5. Step 5: Solve for x
    x = 1,564,324,167,768.13/1,216,365.12
  6. Step 6: Final answer
    x = 1,286,064.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.