Finding the Fourth Proportional to 1,584,990.09, 2,187,286.32 and 905,941.17
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Solution
The fourth proportional to 1,584,990.09, 2,187,286.32 and 905,941.17 is: 1,250,198.81
Step by Step Solution
- Step 1: Write the proportion equation
1,584,990.09 : 2,187,286.32 = 905,941.17 : x - Step 2: Convert to fraction form
1,584,990.09/2,187,286.32 = 905,941.17/x - Step 3: Cross multiply
1,584,990.09x = 2,187,286.32 × 905,941.17 - Step 4: Simplify right side
1,584,990.09x = 1,981,552,727,865.79 - Step 5: Solve for x
x = 1,981,552,727,865.79/1,584,990.09 - Step 6: Final answer
x = 1,250,198.81
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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.