Finding the Fourth Proportional to 486,993.87, 672,038.64 and 272,135.70
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Solution
The fourth proportional to 486,993.87, 672,038.64 and 272,135.70 is: 375,540.06
Step by Step Solution
- Step 1: Write the proportion equation
486,993.87 : 672,038.64 = 272,135.70 : x - Step 2: Convert to fraction form
486,993.87/672,038.64 = 272,135.70/x - Step 3: Cross multiply
486,993.87x = 672,038.64 × 272,135.70 - Step 4: Simplify right side
486,993.87x = 182,885,705,723.45 - Step 5: Solve for x
x = 182,885,705,723.45/486,993.87 - Step 6: Final answer
x = 375,540.06
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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.