Finding the Fourth Proportional to 487,021.53, 672,087.74 and 272,161.53
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Solution
The fourth proportional to 487,021.53, 672,087.74 and 272,161.53 is: 375,581.81
Step by Step Solution
- Step 1: Write the proportion equation
487,021.53 : 672,087.74 = 272,161.53 : x - Step 2: Convert to fraction form
487,021.53/672,087.74 = 272,161.53/x - Step 3: Cross multiply
487,021.53x = 672,087.74 × 272,161.53 - Step 4: Simplify right side
487,021.53x = 182,916,426,251.84 - Step 5: Solve for x
x = 182,916,426,251.84/487,021.53 - Step 6: Final answer
x = 375,581.81
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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.