Finding the Fourth Proportional to 591,215.76, 815,877.72 and 319,283.63
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Solution
The fourth proportional to 591,215.76, 815,877.72 and 319,283.63 is: 440,611.39
Step by Step Solution
- Step 1: Write the proportion equation
591,215.76 : 815,877.72 = 319,283.63 : x - Step 2: Convert to fraction form
591,215.76/815,877.72 = 319,283.63/x - Step 3: Cross multiply
591,215.76x = 815,877.72 × 319,283.63 - Step 4: Simplify right side
591,215.76x = 260,496,398,658.77 - Step 5: Solve for x
x = 260,496,398,658.77/591,215.76 - Step 6: Final answer
x = 440,611.39
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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.