Finding the Fourth Proportional to 397,117.70, 595,676.55 and 318,385.70
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Solution
The fourth proportional to 397,117.70, 595,676.55 and 318,385.70 is: 477,578.55
Step by Step Solution
- Step 1: Write the proportion equation
397,117.70 : 595,676.55 = 318,385.70 : x - Step 2: Convert to fraction form
397,117.70/595,676.55 = 318,385.70/x - Step 3: Cross multiply
397,117.70x = 595,676.55 × 318,385.70 - Step 4: Simplify right side
397,117.70x = 189,654,895,345.34 - Step 5: Solve for x
x = 189,654,895,345.34/397,117.70 - Step 6: Final answer
x = 477,578.55
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1.5x scale
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.