Finding the Fourth Proportional to 487,508.70, 672,796.08 and 272,668.62
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Solution
The fourth proportional to 487,508.70, 672,796.08 and 272,668.62 is: 376,301.75
Step by Step Solution
- Step 1: Write the proportion equation
487,508.70 : 672,796.08 = 272,668.62 : x - Step 2: Convert to fraction form
487,508.70/672,796.08 = 272,668.62/x - Step 3: Cross multiply
487,508.70x = 672,796.08 × 272,668.62 - Step 4: Simplify right side
487,508.70x = 183,450,378,675.01 - Step 5: Solve for x
x = 183,450,378,675.01/487,508.70 - Step 6: Final answer
x = 376,301.75
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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.