Home / 821,015.94-1,133,784.56-776,286.93

Finding the Fourth Proportional to 821,015.94, 1,133,784.56 and 776,286.93

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Solution

The fourth proportional to 821,015.94, 1,133,784.56 and 776,286.93 is: 1,072,015.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,015.94 : 1,133,784.56 = 776,286.93 : x
  2. Step 2: Convert to fraction form
    821,015.94/1,133,784.56 = 776,286.93/x
  3. Step 3: Cross multiply
    821,015.94x = 1,133,784.56 × 776,286.93
  4. Step 4: Simplify right side
    821,015.94x = 880,142,135,363.80
  5. Step 5: Solve for x
    x = 880,142,135,363.80/821,015.94
  6. Step 6: Final answer
    x = 1,072,015.89

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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.