Home / 1,138,230.90-1,568,989.10-775,030.34

Finding the Fourth Proportional to 1,138,230.90, 1,568,989.10 and 775,030.34

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Solution

The fourth proportional to 1,138,230.90, 1,568,989.10 and 775,030.34 is: 1,068,336.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,230.90 : 1,568,989.10 = 775,030.34 : x
  2. Step 2: Convert to fraction form
    1,138,230.90/1,568,989.10 = 775,030.34/x
  3. Step 3: Cross multiply
    1,138,230.90x = 1,568,989.10 × 775,030.34
  4. Step 4: Simplify right side
    1,138,230.90x = 1,216,014,155,629.29
  5. Step 5: Solve for x
    x = 1,216,014,155,629.29/1,138,230.90
  6. Step 6: Final answer
    x = 1,068,336.97

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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.