Finding the Fourth Proportional to 822,721.13, 1,135,348.61 and 460,144.70
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Solution
The fourth proportional to 822,721.13, 1,135,348.61 and 460,144.70 is: 634,996.02
Step by Step Solution
- Step 1: Write the proportion equation
822,721.13 : 1,135,348.61 = 460,144.70 : x - Step 2: Convert to fraction form
822,721.13/1,135,348.61 = 460,144.70/x - Step 3: Cross multiply
822,721.13x = 1,135,348.61 × 460,144.70 - Step 4: Simplify right side
822,721.13x = 522,424,643,118.12 - Step 5: Solve for x
x = 522,424,643,118.12/822,721.13 - Step 6: Final answer
x = 634,996.02
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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.