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Finding the Fourth Proportional to 1,336,707.36, 1,844,485.44 and 763,784.64

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Solution

The fourth proportional to 1,336,707.36, 1,844,485.44 and 763,784.64 is: 1,053,925.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,707.36 : 1,844,485.44 = 763,784.64 : x
  2. Step 2: Convert to fraction form
    1,336,707.36/1,844,485.44 = 763,784.64/x
  3. Step 3: Cross multiply
    1,336,707.36x = 1,844,485.44 × 763,784.64
  4. Step 4: Simplify right side
    1,336,707.36x = 1,408,789,647,775.64
  5. Step 5: Solve for x
    x = 1,408,789,647,775.64/1,336,707.36
  6. Step 6: Final answer
    x = 1,053,925.26

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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.