Finding the Fourth Proportional to 389,543.08, 533,671.50 and 374,976.29
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Solution
The fourth proportional to 389,543.08, 533,671.50 and 374,976.29 is: 513,715.09
Step by Step Solution
- Step 1: Write the proportion equation
389,543.08 : 533,671.50 = 374,976.29 : x - Step 2: Convert to fraction form
389,543.08/533,671.50 = 374,976.29/x - Step 3: Cross multiply
389,543.08x = 533,671.50 × 374,976.29 - Step 4: Simplify right side
389,543.08x = 200,114,159,148.74 - Step 5: Solve for x
x = 200,114,159,148.74/389,543.08 - Step 6: Final answer
x = 513,715.09
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.