Finding the Fourth Proportional to 1,543,836.44, 2,130,506.84 and 855,519.89
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Solution
The fourth proportional to 1,543,836.44, 2,130,506.84 and 855,519.89 is: 1,180,624.40
Step by Step Solution
- Step 1: Write the proportion equation
1,543,836.44 : 2,130,506.84 = 855,519.89 : x - Step 2: Convert to fraction form
1,543,836.44/2,130,506.84 = 855,519.89/x - Step 3: Cross multiply
1,543,836.44x = 2,130,506.84 × 855,519.89 - Step 4: Simplify right side
1,543,836.44x = 1,822,690,968,887.31 - Step 5: Solve for x
x = 1,822,690,968,887.31/1,543,836.44 - Step 6: Final answer
x = 1,180,624.40
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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.