Finding the Fourth Proportional to 1,393,756.74, 1,921,348.44 and 985,137.66
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Solution
The fourth proportional to 1,393,756.74, 1,921,348.44 and 985,137.66 is: 1,358,050.98
Step by Step Solution
- Step 1: Write the proportion equation
1,393,756.74 : 1,921,348.44 = 985,137.66 : x - Step 2: Convert to fraction form
1,393,756.74/1,921,348.44 = 985,137.66/x - Step 3: Cross multiply
1,393,756.74x = 1,921,348.44 × 985,137.66 - Step 4: Simplify right side
1,393,756.74x = 1,892,792,706,226.25 - Step 5: Solve for x
x = 1,892,792,706,226.25/1,393,756.74 - Step 6: Final answer
x = 1,358,050.98
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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.