Finding the Fourth Proportional to 815,271.58, 1,125,178.57 and 492,983.97
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Solution
The fourth proportional to 815,271.58, 1,125,178.57 and 492,983.97 is: 680,380.64
Step by Step Solution
- Step 1: Write the proportion equation
815,271.58 : 1,125,178.57 = 492,983.97 : x - Step 2: Convert to fraction form
815,271.58/1,125,178.57 = 492,983.97/x - Step 3: Cross multiply
815,271.58x = 1,125,178.57 × 492,983.97 - Step 4: Simplify right side
815,271.58x = 554,694,998,397.52 - Step 5: Solve for x
x = 554,694,998,397.52/815,271.58 - Step 6: Final answer
x = 680,380.64
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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.