Finding the Fourth Proportional to 397,116.20, 595,674.30 and 355,125.80
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Solution
The fourth proportional to 397,116.20, 595,674.30 and 355,125.80 is: 532,688.70
Step by Step Solution
- Step 1: Write the proportion equation
397,116.20 : 595,674.30 = 355,125.80 : x - Step 2: Convert to fraction form
397,116.20/595,674.30 = 355,125.80/x - Step 3: Cross multiply
397,116.20x = 595,674.30 × 355,125.80 - Step 4: Simplify right side
397,116.20x = 211,539,312,326.94 - Step 5: Solve for x
x = 211,539,312,326.94/397,116.20 - Step 6: Final answer
x = 532,688.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.