Finding the Fourth Proportional to 3,820,420.56, 5,728,658.40 and 1,124,395.44
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Solution
The fourth proportional to 3,820,420.56, 5,728,658.40 and 1,124,395.44 is: 1,686,012.65
Step by Step Solution
- Step 1: Write the proportion equation
3,820,420.56 : 5,728,658.40 = 1,124,395.44 : x - Step 2: Convert to fraction form
3,820,420.56/5,728,658.40 = 1,124,395.44/x - Step 3: Cross multiply
3,820,420.56x = 5,728,658.40 × 1,124,395.44 - Step 4: Simplify right side
3,820,420.56x = 6,441,277,382,277.70 - Step 5: Solve for x
x = 6,441,277,382,277.70/3,820,420.56 - Step 6: Final answer
x = 1,686,012.65
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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.