Home / 1,125,942.60-1,689,024.78-327,231.12

Finding the Fourth Proportional to 1,125,942.60, 1,689,024.78 and 327,231.12

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Solution

The fourth proportional to 1,125,942.60, 1,689,024.78 and 327,231.12 is: 490,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,942.60 : 1,689,024.78 = 327,231.12 : x
  2. Step 2: Convert to fraction form
    1,125,942.60/1,689,024.78 = 327,231.12/x
  3. Step 3: Cross multiply
    1,125,942.60x = 1,689,024.78 × 327,231.12
  4. Step 4: Simplify right side
    1,125,942.60x = 552,701,470,467.15
  5. Step 5: Solve for x
    x = 552,701,470,467.15/1,125,942.60
  6. Step 6: Final answer
    x = 490,878.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.