Finding the Fourth Proportional to 488,498.58, 674,128.24 and 297,511.99
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Solution
The fourth proportional to 488,498.58, 674,128.24 and 297,511.99 is: 410,566.66
Step by Step Solution
- Step 1: Write the proportion equation
488,498.58 : 674,128.24 = 297,511.99 : x - Step 2: Convert to fraction form
488,498.58/674,128.24 = 297,511.99/x - Step 3: Cross multiply
488,498.58x = 674,128.24 × 297,511.99 - Step 4: Simplify right side
488,498.58x = 200,561,231,768.50 - Step 5: Solve for x
x = 200,561,231,768.50/488,498.58 - Step 6: Final answer
x = 410,566.66
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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.