Finding the Fourth Proportional to 3,173,279.18, 4,379,201.36 and 1,723,035.74
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Solution
The fourth proportional to 3,173,279.18, 4,379,201.36 and 1,723,035.74 is: 2,377,830.63
Step by Step Solution
- Step 1: Write the proportion equation
3,173,279.18 : 4,379,201.36 = 1,723,035.74 : x - Step 2: Convert to fraction form
3,173,279.18/4,379,201.36 = 1,723,035.74/x - Step 3: Cross multiply
3,173,279.18x = 4,379,201.36 × 1,723,035.74 - Step 4: Simplify right side
3,173,279.18x = 7,545,520,425,425.42 - Step 5: Solve for x
x = 7,545,520,425,425.42/3,173,279.18 - Step 6: Final answer
x = 2,377,830.63
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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.