Finding the Fourth Proportional to 1,278,770.28, 1,918,515.08 and 559,175.28
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Solution
The fourth proportional to 1,278,770.28, 1,918,515.08 and 559,175.28 is: 838,920.19
Step by Step Solution
- Step 1: Write the proportion equation
1,278,770.28 : 1,918,515.08 = 559,175.28 : x - Step 2: Convert to fraction form
1,278,770.28/1,918,515.08 = 559,175.28/x - Step 3: Cross multiply
1,278,770.28x = 1,918,515.08 × 559,175.28 - Step 4: Simplify right side
1,278,770.28x = 1,072,786,207,043.22 - Step 5: Solve for x
x = 1,072,786,207,043.22/1,278,770.28 - Step 6: Final answer
x = 838,920.19
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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.