Finding the Fourth Proportional to 487,511.24, 672,745.63 and 283,568.02
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Solution
The fourth proportional to 487,511.24, 672,745.63 and 283,568.02 is: 391,312.30
Step by Step Solution
- Step 1: Write the proportion equation
487,511.24 : 672,745.63 = 283,568.02 : x - Step 2: Convert to fraction form
487,511.24/672,745.63 = 283,568.02/x - Step 3: Cross multiply
487,511.24x = 672,745.63 × 283,568.02 - Step 4: Simplify right side
487,511.24x = 190,769,141,481.18 - Step 5: Solve for x
x = 190,769,141,481.18/487,511.24 - Step 6: Final answer
x = 391,312.30
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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.