Finding the Fourth Proportional to 822,862.26, 1,135,092.65 and 478,659.47
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Solution
The fourth proportional to 822,862.26, 1,135,092.65 and 478,659.47 is: 660,284.07
Step by Step Solution
- Step 1: Write the proportion equation
822,862.26 : 1,135,092.65 = 478,659.47 : x - Step 2: Convert to fraction form
822,862.26/1,135,092.65 = 478,659.47/x - Step 3: Cross multiply
822,862.26x = 1,135,092.65 × 478,659.47 - Step 4: Simplify right side
822,862.26x = 543,322,838,181.14 - Step 5: Solve for x
x = 543,322,838,181.14/822,862.26 - Step 6: Final answer
x = 660,284.07
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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.