Finding the Fourth Proportional to 3,121,471, 4,307,629.98 and 1,690,687
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Solution
The fourth proportional to 3,121,471, 4,307,629.98 and 1,690,687 is: 2,333,148.06
Step by Step Solution
- Step 1: Write the proportion equation
3,121,471 : 4,307,629.98 = 1,690,687 : x - Step 2: Convert to fraction form
3,121,471/4,307,629.98 = 1,690,687/x - Step 3: Cross multiply
3,121,471x = 4,307,629.98 × 1,690,687 - Step 4: Simplify right side
3,121,471x = 7,282,854,007,996.26 - Step 5: Solve for x
x = 7,282,854,007,996.26/3,121,471 - Step 6: Final answer
x = 2,333,148.06
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.