Finding the Fourth Proportional to 830,687.31, 1,146,348.99 and 448,714.26
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Solution
The fourth proportional to 830,687.31, 1,146,348.99 and 448,714.26 is: 619,225.95
Step by Step Solution
- Step 1: Write the proportion equation
830,687.31 : 1,146,348.99 = 448,714.26 : x - Step 2: Convert to fraction form
830,687.31/1,146,348.99 = 448,714.26/x - Step 3: Cross multiply
830,687.31x = 1,146,348.99 × 448,714.26 - Step 4: Simplify right side
830,687.31x = 514,383,138,749.60 - Step 5: Solve for x
x = 514,383,138,749.60/830,687.31 - Step 6: Final answer
x = 619,225.95
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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.