Finding the Fourth Proportional to 910,278.20, 1,358,495.68 and 809,390.10
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Solution
The fourth proportional to 910,278.20, 1,358,495.68 and 809,390.10 is: 1,207,930.67
Step by Step Solution
- Step 1: Write the proportion equation
910,278.20 : 1,358,495.68 = 809,390.10 : x - Step 2: Convert to fraction form
910,278.20/1,358,495.68 = 809,390.10/x - Step 3: Cross multiply
910,278.20x = 1,358,495.68 × 809,390.10 - Step 4: Simplify right side
910,278.20x = 1,099,552,954,284.77 - Step 5: Solve for x
x = 1,099,552,954,284.77/910,278.20 - Step 6: Final answer
x = 1,207,930.67
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.