Finding the Fourth Proportional to 854,056.18, 1,178,477.13 and 486,542.98
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Solution
The fourth proportional to 854,056.18, 1,178,477.13 and 486,542.98 is: 671,360.72
Step by Step Solution
- Step 1: Write the proportion equation
854,056.18 : 1,178,477.13 = 486,542.98 : x - Step 2: Convert to fraction form
854,056.18/1,178,477.13 = 486,542.98/x - Step 3: Cross multiply
854,056.18x = 1,178,477.13 × 486,542.98 - Step 4: Simplify right side
854,056.18x = 573,379,774,692.05 - Step 5: Solve for x
x = 573,379,774,692.05/854,056.18 - Step 6: Final answer
x = 671,360.72
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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.