Finding the Fourth Proportional to 878,562.40, 1,212,491.28 and 496,657.12
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Solution
The fourth proportional to 878,562.40, 1,212,491.28 and 496,657.12 is: 685,429.32
Step by Step Solution
- Step 1: Write the proportion equation
878,562.40 : 1,212,491.28 = 496,657.12 : x - Step 2: Convert to fraction form
878,562.40/1,212,491.28 = 496,657.12/x - Step 3: Cross multiply
878,562.40x = 1,212,491.28 × 496,657.12 - Step 4: Simplify right side
878,562.40x = 602,192,427,149.91 - Step 5: Solve for x
x = 602,192,427,149.91/878,562.40 - Step 6: Final answer
x = 685,429.32
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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.