Finding the Fourth Proportional to 3,759,331.12, 5,638,996.68 and 919,409.56
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Solution
The fourth proportional to 3,759,331.12, 5,638,996.68 and 919,409.56 is: 1,379,114.34
Step by Step Solution
- Step 1: Write the proportion equation
3,759,331.12 : 5,638,996.68 = 919,409.56 : x - Step 2: Convert to fraction form
3,759,331.12/5,638,996.68 = 919,409.56/x - Step 3: Cross multiply
3,759,331.12x = 5,638,996.68 × 919,409.56 - Step 4: Simplify right side
3,759,331.12x = 5,184,547,456,400.26 - Step 5: Solve for x
x = 5,184,547,456,400.26/3,759,331.12 - Step 6: Final answer
x = 1,379,114.34
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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.