Finding the Fourth Proportional to 1,292,125.20, 1,938,187.80 and 332,578.95
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Solution
The fourth proportional to 1,292,125.20, 1,938,187.80 and 332,578.95 is: 498,868.43
Step by Step Solution
- Step 1: Write the proportion equation
1,292,125.20 : 1,938,187.80 = 332,578.95 : x - Step 2: Convert to fraction form
1,292,125.20/1,938,187.80 = 332,578.95/x - Step 3: Cross multiply
1,292,125.20x = 1,938,187.80 × 332,578.95 - Step 4: Simplify right side
1,292,125.20x = 644,600,463,426.81 - Step 5: Solve for x
x = 644,600,463,426.81/1,292,125.20 - Step 6: Final answer
x = 498,868.43
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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.