Finding the Fourth Proportional to 721,714.24, 996,039.78 and 415,802.14
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Solution
The fourth proportional to 721,714.24, 996,039.78 and 415,802.14 is: 573,849.66
Step by Step Solution
- Step 1: Write the proportion equation
721,714.24 : 996,039.78 = 415,802.14 : x - Step 2: Convert to fraction form
721,714.24/996,039.78 = 415,802.14/x - Step 3: Cross multiply
721,714.24x = 996,039.78 × 415,802.14 - Step 4: Simplify right side
721,714.24x = 414,155,472,049.13 - Step 5: Solve for x
x = 414,155,472,049.13/721,714.24 - Step 6: Final answer
x = 573,849.66
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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.