Finding the Fourth Proportional to 681,397.79, 940,328.97 and 395,083.95
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Solution
The fourth proportional to 681,397.79, 940,328.97 and 395,083.95 is: 545,215.86
Step by Step Solution
- Step 1: Write the proportion equation
681,397.79 : 940,328.97 = 395,083.95 : x - Step 2: Convert to fraction form
681,397.79/940,328.97 = 395,083.95/x - Step 3: Cross multiply
681,397.79x = 940,328.97 × 395,083.95 - Step 4: Simplify right side
681,397.79x = 371,508,878,759.23 - Step 5: Solve for x
x = 371,508,878,759.23/681,397.79 - Step 6: Final answer
x = 545,215.86
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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.