Home / 1,086,180.57-1,499,219.78-678,036.51

Finding the Fourth Proportional to 1,086,180.57, 1,499,219.78 and 678,036.51

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Solution

The fourth proportional to 1,086,180.57, 1,499,219.78 and 678,036.51 is: 935,871.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,180.57 : 1,499,219.78 = 678,036.51 : x
  2. Step 2: Convert to fraction form
    1,086,180.57/1,499,219.78 = 678,036.51/x
  3. Step 3: Cross multiply
    1,086,180.57x = 1,499,219.78 × 678,036.51
  4. Step 4: Simplify right side
    1,086,180.57x = 1,016,525,743,963.99
  5. Step 5: Solve for x
    x = 1,016,525,743,963.99/1,086,180.57
  6. Step 6: Final answer
    x = 935,871.78

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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.