Finding the Fourth Proportional to 714,206.97, 985,602.84 and 391,922.45
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Solution
The fourth proportional to 714,206.97, 985,602.84 and 391,922.45 is: 540,851.45
Step by Step Solution
- Step 1: Write the proportion equation
714,206.97 : 985,602.84 = 391,922.45 : x - Step 2: Convert to fraction form
714,206.97/985,602.84 = 391,922.45/x - Step 3: Cross multiply
714,206.97x = 985,602.84 × 391,922.45 - Step 4: Simplify right side
714,206.97x = 386,279,877,078.05 - Step 5: Solve for x
x = 386,279,877,078.05/714,206.97 - Step 6: Final answer
x = 540,851.45
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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.