Finding the Fourth Proportional to 664,245.12, 916,394.88 and 409,153.92
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Solution
The fourth proportional to 664,245.12, 916,394.88 and 409,153.92 is: 564,470.17
Step by Step Solution
- Step 1: Write the proportion equation
664,245.12 : 916,394.88 = 409,153.92 : x - Step 2: Convert to fraction form
664,245.12/916,394.88 = 409,153.92/x - Step 3: Cross multiply
664,245.12x = 916,394.88 × 409,153.92 - Step 4: Simplify right side
664,245.12x = 374,946,557,419.93 - Step 5: Solve for x
x = 374,946,557,419.93/664,245.12 - Step 6: Final answer
x = 564,470.17
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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.