Finding the Fourth Proportional to 854,057.18, 1,178,478.51 and 486,543.98
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Solution
The fourth proportional to 854,057.18, 1,178,478.51 and 486,543.98 is: 671,362.10
Step by Step Solution
- Step 1: Write the proportion equation
854,057.18 : 1,178,478.51 = 486,543.98 : x - Step 2: Convert to fraction form
854,057.18/1,178,478.51 = 486,543.98/x - Step 3: Cross multiply
854,057.18x = 1,178,478.51 × 486,543.98 - Step 4: Simplify right side
854,057.18x = 573,381,624,599.87 - Step 5: Solve for x
x = 573,381,624,599.87/854,057.18 - Step 6: Final answer
x = 671,362.10
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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.