Finding the Fourth Proportional to 853,070.64, 1,279,474.74 and 284,461.62
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Solution
The fourth proportional to 853,070.64, 1,279,474.74 and 284,461.62 is: 426,648.67
Step by Step Solution
- Step 1: Write the proportion equation
853,070.64 : 1,279,474.74 = 284,461.62 : x - Step 2: Convert to fraction form
853,070.64/1,279,474.74 = 284,461.62/x - Step 3: Cross multiply
853,070.64x = 1,279,474.74 × 284,461.62 - Step 4: Simplify right side
853,070.64x = 363,961,457,289.48 - Step 5: Solve for x
x = 363,961,457,289.48/853,070.64 - Step 6: Final answer
x = 426,648.67
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1.5x scale
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.