Finding the Fourth Proportional to 658,638.96, 908,922.69 and 356,832.96
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Solution
The fourth proportional to 658,638.96, 908,922.69 and 356,832.96 is: 492,429.99
Step by Step Solution
- Step 1: Write the proportion equation
658,638.96 : 908,922.69 = 356,832.96 : x - Step 2: Convert to fraction form
658,638.96/908,922.69 = 356,832.96/x - Step 3: Cross multiply
658,638.96x = 908,922.69 × 356,832.96 - Step 4: Simplify right side
658,638.96x = 324,333,573,883.86 - Step 5: Solve for x
x = 324,333,573,883.86/658,638.96 - Step 6: Final answer
x = 492,429.99
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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.