Finding the Fourth Proportional to 3,122,697.75, 4,307,660.62 and 1,899,377.43
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Solution
The fourth proportional to 3,122,697.75, 4,307,660.62 and 1,899,377.43 is: 2,620,129.78
Step by Step Solution
- Step 1: Write the proportion equation
3,122,697.75 : 4,307,660.62 = 1,899,377.43 : x - Step 2: Convert to fraction form
3,122,697.75/4,307,660.62 = 1,899,377.43/x - Step 3: Cross multiply
3,122,697.75x = 4,307,660.62 × 1,899,377.43 - Step 4: Simplify right side
3,122,697.75x = 8,181,873,357,727.81 - Step 5: Solve for x
x = 8,181,873,357,727.81/3,122,697.75 - Step 6: Final answer
x = 2,620,129.78
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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.