Finding the Fourth Proportional to 586,684.80, 809,625.36 and 318,412.80
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Solution
The fourth proportional to 586,684.80, 809,625.36 and 318,412.80 is: 439,409.85
Step by Step Solution
- Step 1: Write the proportion equation
586,684.80 : 809,625.36 = 318,412.80 : x - Step 2: Convert to fraction form
586,684.80/809,625.36 = 318,412.80/x - Step 3: Cross multiply
586,684.80x = 809,625.36 × 318,412.80 - Step 4: Simplify right side
586,684.80x = 257,795,077,828.61 - Step 5: Solve for x
x = 257,795,077,828.61/586,684.80 - Step 6: Final answer
x = 439,409.85
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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.