Finding the Fourth Proportional to 1,296,368.70, 1,944,553.05 and 1,243,880.70
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Solution
The fourth proportional to 1,296,368.70, 1,944,553.05 and 1,243,880.70 is: 1,865,821.05
Step by Step Solution
- Step 1: Write the proportion equation
1,296,368.70 : 1,944,553.05 = 1,243,880.70 : x - Step 2: Convert to fraction form
1,296,368.70/1,944,553.05 = 1,243,880.70/x - Step 3: Cross multiply
1,296,368.70x = 1,944,553.05 × 1,243,880.70 - Step 4: Simplify right side
1,296,368.70x = 2,418,792,009,021.13 - Step 5: Solve for x
x = 2,418,792,009,021.13/1,296,368.70 - Step 6: Final answer
x = 1,865,821.05
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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.