Finding the Fourth Proportional to 1,395,940.70, 2,093,911.05 and 917,643.80
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Solution
The fourth proportional to 1,395,940.70, 2,093,911.05 and 917,643.80 is: 1,376,465.70
Step by Step Solution
- Step 1: Write the proportion equation
1,395,940.70 : 2,093,911.05 = 917,643.80 : x - Step 2: Convert to fraction form
1,395,940.70/2,093,911.05 = 917,643.80/x - Step 3: Cross multiply
1,395,940.70x = 2,093,911.05 × 917,643.80 - Step 4: Simplify right side
1,395,940.70x = 1,921,464,492,783.99 - Step 5: Solve for x
x = 1,921,464,492,783.99/1,395,940.70 - Step 6: Final answer
x = 1,376,465.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.