Finding the Fourth Proportional to 870,647.63, 1,201,476.99 and 483,442.92
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Solution
The fourth proportional to 870,647.63, 1,201,476.99 and 483,442.92 is: 667,141.94
Step by Step Solution
- Step 1: Write the proportion equation
870,647.63 : 1,201,476.99 = 483,442.92 : x - Step 2: Convert to fraction form
870,647.63/1,201,476.99 = 483,442.92/x - Step 3: Cross multiply
870,647.63x = 1,201,476.99 × 483,442.92 - Step 4: Simplify right side
870,647.63x = 580,845,544,358.41 - Step 5: Solve for x
x = 580,845,544,358.41/870,647.63 - Step 6: Final answer
x = 667,141.94
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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.