Finding the Fourth Proportional to 664,120.98, 916,482.87 and 377,641.26
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Solution
The fourth proportional to 664,120.98, 916,482.87 and 377,641.26 is: 521,142.62
Step by Step Solution
- Step 1: Write the proportion equation
664,120.98 : 916,482.87 = 377,641.26 : x - Step 2: Convert to fraction form
664,120.98/916,482.87 = 377,641.26/x - Step 3: Cross multiply
664,120.98x = 916,482.87 × 377,641.26 - Step 4: Simplify right side
664,120.98x = 346,101,745,795.22 - Step 5: Solve for x
x = 346,101,745,795.22/664,120.98 - Step 6: Final answer
x = 521,142.62
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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.