Home / 1,189,076.28-1,642,288.14-782,993.58

Finding the Fourth Proportional to 1,189,076.28, 1,642,288.14 and 782,993.58

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Solution

The fourth proportional to 1,189,076.28, 1,642,288.14 and 782,993.58 is: 1,081,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,076.28 : 1,642,288.14 = 782,993.58 : x
  2. Step 2: Convert to fraction form
    1,189,076.28/1,642,288.14 = 782,993.58/x
  3. Step 3: Cross multiply
    1,189,076.28x = 1,642,288.14 × 782,993.58
  4. Step 4: Simplify right side
    1,189,076.28x = 1,285,901,070,130.14
  5. Step 5: Solve for x
    x = 1,285,901,070,130.14/1,189,076.28
  6. Step 6: Final answer
    x = 1,081,428.58

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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.