Home / 1,019,638.92-1,405,025.82-788,793.72

Finding the Fourth Proportional to 1,019,638.92, 1,405,025.82 and 788,793.72

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Solution

The fourth proportional to 1,019,638.92, 1,405,025.82 and 788,793.72 is: 1,086,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,638.92 : 1,405,025.82 = 788,793.72 : x
  2. Step 2: Convert to fraction form
    1,019,638.92/1,405,025.82 = 788,793.72/x
  3. Step 3: Cross multiply
    1,019,638.92x = 1,405,025.82 × 788,793.72
  4. Step 4: Simplify right side
    1,019,638.92x = 1,108,275,543,253.85
  5. Step 5: Solve for x
    x = 1,108,275,543,253.85/1,019,638.92
  6. Step 6: Final answer
    x = 1,086,929.42

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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.