Finding the Fourth Proportional to 487,617.18, 672,640.82 and 283,645.14
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Solution
The fourth proportional to 487,617.18, 672,640.82 and 283,645.14 is: 391,272.72
Step by Step Solution
- Step 1: Write the proportion equation
487,617.18 : 672,640.82 = 283,645.14 : x - Step 2: Convert to fraction form
487,617.18/672,640.82 = 283,645.14/x - Step 3: Cross multiply
487,617.18x = 672,640.82 × 283,645.14 - Step 4: Simplify right side
487,617.18x = 190,791,299,558.62 - Step 5: Solve for x
x = 190,791,299,558.62/487,617.18 - Step 6: Final answer
x = 391,272.72
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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.