Finding the Fourth Proportional to 3,571,391.19, 4,928,555.99 and 1,939,830.40
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Solution
The fourth proportional to 3,571,391.19, 4,928,555.99 and 1,939,830.40 is: 2,676,985.59
Step by Step Solution
- Step 1: Write the proportion equation
3,571,391.19 : 4,928,555.99 = 1,939,830.40 : x - Step 2: Convert to fraction form
3,571,391.19/4,928,555.99 = 1,939,830.40/x - Step 3: Cross multiply
3,571,391.19x = 4,928,555.99 × 1,939,830.40 - Step 4: Simplify right side
3,571,391.19x = 9,560,562,737,504.10 - Step 5: Solve for x
x = 9,560,562,737,504.10/3,571,391.19 - Step 6: Final answer
x = 2,676,985.59
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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.