Finding the Fourth Proportional to 1,378,526.14, 1,902,355.53 and 758,317.96
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Solution
The fourth proportional to 1,378,526.14, 1,902,355.53 and 758,317.96 is: 1,046,472.98
Step by Step Solution
- Step 1: Write the proportion equation
1,378,526.14 : 1,902,355.53 = 758,317.96 : x - Step 2: Convert to fraction form
1,378,526.14/1,902,355.53 = 758,317.96/x - Step 3: Cross multiply
1,378,526.14x = 1,902,355.53 × 758,317.96 - Step 4: Simplify right side
1,378,526.14x = 1,442,590,361,020.97 - Step 5: Solve for x
x = 1,442,590,361,020.97/1,378,526.14 - Step 6: Final answer
x = 1,046,472.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.