Home / 842,128.83-1,163,367.18-728,754.75

Finding the Fourth Proportional to 842,128.83, 1,163,367.18 and 728,754.75

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Solution

The fourth proportional to 842,128.83, 1,163,367.18 and 728,754.75 is: 1,006,745.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,128.83 : 1,163,367.18 = 728,754.75 : x
  2. Step 2: Convert to fraction form
    842,128.83/1,163,367.18 = 728,754.75/x
  3. Step 3: Cross multiply
    842,128.83x = 1,163,367.18 × 728,754.75
  4. Step 4: Simplify right side
    842,128.83x = 847,809,358,419.11
  5. Step 5: Solve for x
    x = 847,809,358,419.11/842,128.83
  6. Step 6: Final answer
    x = 1,006,745.44

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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.