Finding the Fourth Proportional to 1,528,279.70, 2,292,419.55 and 819,691.70
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Solution
The fourth proportional to 1,528,279.70, 2,292,419.55 and 819,691.70 is: 1,229,537.55
Step by Step Solution
- Step 1: Write the proportion equation
1,528,279.70 : 2,292,419.55 = 819,691.70 : x - Step 2: Convert to fraction form
1,528,279.70/2,292,419.55 = 819,691.70/x - Step 3: Cross multiply
1,528,279.70x = 2,292,419.55 × 819,691.70 - Step 4: Simplify right side
1,528,279.70x = 1,879,077,278,052.73 - Step 5: Solve for x
x = 1,879,077,278,052.73/1,528,279.70 - Step 6: Final answer
x = 1,229,537.55
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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.