Home / 772,678.27-1,158,999.32-204,099.05

Finding the Fourth Proportional to 772,678.27, 1,158,999.32 and 204,099.05

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Solution

The fourth proportional to 772,678.27, 1,158,999.32 and 204,099.05 is: 306,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,678.27 : 1,158,999.32 = 204,099.05 : x
  2. Step 2: Convert to fraction form
    772,678.27/1,158,999.32 = 204,099.05/x
  3. Step 3: Cross multiply
    772,678.27x = 1,158,999.32 × 204,099.05
  4. Step 4: Simplify right side
    772,678.27x = 236,550,660,162.65
  5. Step 5: Solve for x
    x = 236,550,660,162.65/772,678.27
  6. Step 6: Final answer
    x = 306,143.80

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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.