Finding the Fourth Proportional to 665,751.20, 918,729.77 and 379,277.44
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Solution
The fourth proportional to 665,751.20, 918,729.77 and 379,277.44 is: 523,398.94
Step by Step Solution
- Step 1: Write the proportion equation
665,751.20 : 918,729.77 = 379,277.44 : x - Step 2: Convert to fraction form
665,751.20/918,729.77 = 379,277.44/x - Step 3: Cross multiply
665,751.20x = 918,729.77 × 379,277.44 - Step 4: Simplify right side
665,751.20x = 348,453,472,090.90 - Step 5: Solve for x
x = 348,453,472,090.90/665,751.20 - Step 6: Final answer
x = 523,398.94
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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.