Finding the Fourth Proportional to 822,965.28, 1,234,496.07 and 317,528.94
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Solution
The fourth proportional to 822,965.28, 1,234,496.07 and 317,528.94 is: 476,311.99
Step by Step Solution
- Step 1: Write the proportion equation
822,965.28 : 1,234,496.07 = 317,528.94 : x - Step 2: Convert to fraction form
822,965.28/1,234,496.07 = 317,528.94/x - Step 3: Cross multiply
822,965.28x = 1,234,496.07 × 317,528.94 - Step 4: Simplify right side
822,965.28x = 391,988,228,541.27 - Step 5: Solve for x
x = 391,988,228,541.27/822,965.28 - Step 6: Final answer
x = 476,311.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.