Finding the Fourth Proportional to 818,429.68, 1,129,489.74 and 496,153.36
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Solution
The fourth proportional to 818,429.68, 1,129,489.74 and 496,153.36 is: 684,726.06
Step by Step Solution
- Step 1: Write the proportion equation
818,429.68 : 1,129,489.74 = 496,153.36 : x - Step 2: Convert to fraction form
818,429.68/1,129,489.74 = 496,153.36/x - Step 3: Cross multiply
818,429.68x = 1,129,489.74 × 496,153.36 - Step 4: Simplify right side
818,429.68x = 560,400,129,586.53 - Step 5: Solve for x
x = 560,400,129,586.53/818,429.68 - Step 6: Final answer
x = 684,726.06
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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.