Finding the Fourth Proportional to 725,320.62, 1,080,690.87 and 684,576.02
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Solution
The fourth proportional to 725,320.62, 1,080,690.87 and 684,576.02 is: 1,019,983.48
Step by Step Solution
- Step 1: Write the proportion equation
725,320.62 : 1,080,690.87 = 684,576.02 : x - Step 2: Convert to fraction form
725,320.62/1,080,690.87 = 684,576.02/x - Step 3: Cross multiply
725,320.62x = 1,080,690.87 × 684,576.02 - Step 4: Simplify right side
725,320.62x = 739,815,051,212.06 - Step 5: Solve for x
x = 739,815,051,212.06/725,320.62 - Step 6: Final answer
x = 1,019,983.48
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.