Finding the Fourth Proportional to 3,470,148.36, 4,790,542.68 and 2,181,699.12
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Solution
The fourth proportional to 3,470,148.36, 4,790,542.68 and 2,181,699.12 is: 3,011,837.44
Step by Step Solution
- Step 1: Write the proportion equation
3,470,148.36 : 4,790,542.68 = 2,181,699.12 : x - Step 2: Convert to fraction form
3,470,148.36/4,790,542.68 = 2,181,699.12/x - Step 3: Cross multiply
3,470,148.36x = 4,790,542.68 × 2,181,699.12 - Step 4: Simplify right side
3,470,148.36x = 10,451,522,749,278.44 - Step 5: Solve for x
x = 10,451,522,749,278.44/3,470,148.36 - Step 6: Final answer
x = 3,011,837.44
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1.5x scale
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.