Finding the Fourth Proportional to 486,398.31, 671,240.97 and 305,117.88
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Solution
The fourth proportional to 486,398.31, 671,240.97 and 305,117.88 is: 421,069.76
Step by Step Solution
- Step 1: Write the proportion equation
486,398.31 : 671,240.97 = 305,117.88 : x - Step 2: Convert to fraction form
486,398.31/671,240.97 = 305,117.88/x - Step 3: Cross multiply
486,398.31x = 671,240.97 × 305,117.88 - Step 4: Simplify right side
486,398.31x = 204,807,621,735.54 - Step 5: Solve for x
x = 204,807,621,735.54/486,398.31 - Step 6: Final answer
x = 421,069.76
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.