Finding the Fourth Proportional to 822,813.24, 1,135,723.66 and 478,730.10
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Solution
The fourth proportional to 822,813.24, 1,135,723.66 and 478,730.10 is: 660,787.98
Step by Step Solution
- Step 1: Write the proportion equation
822,813.24 : 1,135,723.66 = 478,730.10 : x - Step 2: Convert to fraction form
822,813.24/1,135,723.66 = 478,730.10/x - Step 3: Cross multiply
822,813.24x = 1,135,723.66 × 478,730.10 - Step 4: Simplify right side
822,813.24x = 543,705,101,324.17 - Step 5: Solve for x
x = 543,705,101,324.17/822,813.24 - Step 6: Final answer
x = 660,787.98
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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.