Finding the Fourth Proportional to 3,174,544.98, 4,380,903.90 and 1,724,268.78
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Solution
The fourth proportional to 3,174,544.98, 4,380,903.90 and 1,724,268.78 is: 2,379,508.20
Step by Step Solution
- Step 1: Write the proportion equation
3,174,544.98 : 4,380,903.90 = 1,724,268.78 : x - Step 2: Convert to fraction form
3,174,544.98/4,380,903.90 = 1,724,268.78/x - Step 3: Cross multiply
3,174,544.98x = 4,380,903.90 × 1,724,268.78 - Step 4: Simplify right side
3,174,544.98x = 7,553,855,822,950.24 - Step 5: Solve for x
x = 7,553,855,822,950.24/3,174,544.98 - Step 6: Final answer
x = 2,379,508.20
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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.