Finding the Fourth Proportional to 3,816,745.20, 5,725,117.80 and 1,292,400.45
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Solution
The fourth proportional to 3,816,745.20, 5,725,117.80 and 1,292,400.45 is: 1,938,600.68
Step by Step Solution
- Step 1: Write the proportion equation
3,816,745.20 : 5,725,117.80 = 1,292,400.45 : x - Step 2: Convert to fraction form
3,816,745.20/5,725,117.80 = 1,292,400.45/x - Step 3: Cross multiply
3,816,745.20x = 5,725,117.80 × 1,292,400.45 - Step 4: Simplify right side
3,816,745.20x = 7,399,144,821,023.01 - Step 5: Solve for x
x = 7,399,144,821,023.01/3,816,745.20 - Step 6: Final answer
x = 1,938,600.68
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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.