Home / 1,019,639.92-1,405,027.20-788,794.72

Finding the Fourth Proportional to 1,019,639.92, 1,405,027.20 and 788,794.72

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Solution

The fourth proportional to 1,019,639.92, 1,405,027.20 and 788,794.72 is: 1,086,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,639.92 : 1,405,027.20 = 788,794.72 : x
  2. Step 2: Convert to fraction form
    1,019,639.92/1,405,027.20 = 788,794.72/x
  3. Step 3: Cross multiply
    1,019,639.92x = 1,405,027.20 × 788,794.72
  4. Step 4: Simplify right side
    1,019,639.92x = 1,108,278,036,816.38
  5. Step 5: Solve for x
    x = 1,108,278,036,816.38/1,019,639.92
  6. Step 6: Final answer
    x = 1,086,930.80

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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.