Home / 821,017.44-1,133,786.62-776,288.44

Finding the Fourth Proportional to 821,017.44, 1,133,786.62 and 776,288.44

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Solution

The fourth proportional to 821,017.44, 1,133,786.62 and 776,288.44 is: 1,072,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,017.44 : 1,133,786.62 = 776,288.44 : x
  2. Step 2: Convert to fraction form
    821,017.44/1,133,786.62 = 776,288.44/x
  3. Step 3: Cross multiply
    821,017.44x = 1,133,786.62 × 776,288.44
  4. Step 4: Simplify right side
    821,017.44x = 880,145,446,532.67
  5. Step 5: Solve for x
    x = 880,145,446,532.67/821,017.44
  6. Step 6: Final answer
    x = 1,072,017.97

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1.5x scale

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.