Finding the Fourth Proportional to 3,173,638.96, 4,379,607.90 and 1,723,322.62
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Solution
The fourth proportional to 3,173,638.96, 4,379,607.90 and 1,723,322.62 is: 2,378,177.69
Step by Step Solution
- Step 1: Write the proportion equation
3,173,638.96 : 4,379,607.90 = 1,723,322.62 : x - Step 2: Convert to fraction form
3,173,638.96/4,379,607.90 = 1,723,322.62/x - Step 3: Cross multiply
3,173,638.96x = 4,379,607.90 × 1,723,322.62 - Step 4: Simplify right side
3,173,638.96x = 7,547,477,360,800.70 - Step 5: Solve for x
x = 7,547,477,360,800.70/3,173,638.96 - Step 6: Final answer
x = 2,378,177.69
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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.