Finding the Fourth Proportional to 3,108,212.36, 4,289,268.43 and 1,731,554.18
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Solution
The fourth proportional to 3,108,212.36, 4,289,268.43 and 1,731,554.18 is: 2,389,508.77
Step by Step Solution
- Step 1: Write the proportion equation
3,108,212.36 : 4,289,268.43 = 1,731,554.18 : x - Step 2: Convert to fraction form
3,108,212.36/4,289,268.43 = 1,731,554.18/x - Step 3: Cross multiply
3,108,212.36x = 4,289,268.43 × 1,731,554.18 - Step 4: Simplify right side
3,108,212.36x = 7,427,100,679,108.54 - Step 5: Solve for x
x = 7,427,100,679,108.54/3,108,212.36 - Step 6: Final answer
x = 2,389,508.77
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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.