Finding the Fourth Proportional to 822,814.23, 1,135,725.03 and 478,731.09
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Solution
The fourth proportional to 822,814.23, 1,135,725.03 and 478,731.09 is: 660,789.35
Step by Step Solution
- Step 1: Write the proportion equation
822,814.23 : 1,135,725.03 = 478,731.09 : x - Step 2: Convert to fraction form
822,814.23/1,135,725.03 = 478,731.09/x - Step 3: Cross multiply
822,814.23x = 1,135,725.03 × 478,731.09 - Step 4: Simplify right side
822,814.23x = 543,706,881,552.18 - Step 5: Solve for x
x = 543,706,881,552.18/822,814.23 - Step 6: Final answer
x = 660,789.35
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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.