Home / 921,941.36-1,269,383.94-783,848.69

Finding the Fourth Proportional to 921,941.36, 1,269,383.94 and 783,848.69

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Solution

The fourth proportional to 921,941.36, 1,269,383.94 and 783,848.69 is: 1,079,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,941.36 : 1,269,383.94 = 783,848.69 : x
  2. Step 2: Convert to fraction form
    921,941.36/1,269,383.94 = 783,848.69/x
  3. Step 3: Cross multiply
    921,941.36x = 1,269,383.94 × 783,848.69
  4. Step 4: Simplify right side
    921,941.36x = 995,004,938,476.04
  5. Step 5: Solve for x
    x = 995,004,938,476.04/921,941.36
  6. Step 6: Final answer
    x = 1,079,249.70

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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.