Finding the Fourth Proportional to 1,679,797.43, 2,318,053.67 and 991,690.94
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Solution
The fourth proportional to 1,679,797.43, 2,318,053.67 and 991,690.94 is: 1,368,494.07
Step by Step Solution
- Step 1: Write the proportion equation
1,679,797.43 : 2,318,053.67 = 991,690.94 : x - Step 2: Convert to fraction form
1,679,797.43/2,318,053.67 = 991,690.94/x - Step 3: Cross multiply
1,679,797.43x = 2,318,053.67 × 991,690.94 - Step 4: Simplify right side
1,679,797.43x = 2,298,792,825,663.02 - Step 5: Solve for x
x = 2,298,792,825,663.02/1,679,797.43 - Step 6: Final answer
x = 1,368,494.07
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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.