Finding the Fourth Proportional to 818,073.39, 1,227,166.17 and 278,109.99
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Solution
The fourth proportional to 818,073.39, 1,227,166.17 and 278,109.99 is: 417,184.05
Step by Step Solution
- Step 1: Write the proportion equation
818,073.39 : 1,227,166.17 = 278,109.99 : x - Step 2: Convert to fraction form
818,073.39/1,227,166.17 = 278,109.99/x - Step 3: Cross multiply
818,073.39x = 1,227,166.17 × 278,109.99 - Step 4: Simplify right side
818,073.39x = 341,287,171,267.04 - Step 5: Solve for x
x = 341,287,171,267.04/818,073.39 - Step 6: Final answer
x = 417,184.05
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1.5x scale
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.