Home / 1,289,008.27-1,778,843.57-708,243.58

Finding the Fourth Proportional to 1,289,008.27, 1,778,843.57 and 708,243.58

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Solution

The fourth proportional to 1,289,008.27, 1,778,843.57 and 708,243.58 is: 977,382.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,008.27 : 1,778,843.57 = 708,243.58 : x
  2. Step 2: Convert to fraction form
    1,289,008.27/1,778,843.57 = 708,243.58/x
  3. Step 3: Cross multiply
    1,289,008.27x = 1,778,843.57 × 708,243.58
  4. Step 4: Simplify right side
    1,289,008.27x = 1,259,854,534,735.56
  5. Step 5: Solve for x
    x = 1,259,854,534,735.56/1,289,008.27
  6. Step 6: Final answer
    x = 977,382.82

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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.