Finding the Fourth Proportional to 586,677.68, 809,615.04 and 318,405.68
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Solution
The fourth proportional to 586,677.68, 809,615.04 and 318,405.68 is: 439,399.75
Step by Step Solution
- Step 1: Write the proportion equation
586,677.68 : 809,615.04 = 318,405.68 : x - Step 2: Convert to fraction form
586,677.68/809,615.04 = 318,405.68/x - Step 3: Cross multiply
586,677.68x = 809,615.04 × 318,405.68 - Step 4: Simplify right side
586,677.68x = 257,786,027,349.43 - Step 5: Solve for x
x = 257,786,027,349.43/586,677.68 - Step 6: Final answer
x = 439,399.75
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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.