Finding the Fourth Proportional to 1,543,128.77, 2,129,534.73 and 854,811.17
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Solution
The fourth proportional to 1,543,128.77, 2,129,534.73 and 854,811.17 is: 1,179,648.84
Step by Step Solution
- Step 1: Write the proportion equation
1,543,128.77 : 2,129,534.73 = 854,811.17 : x - Step 2: Convert to fraction form
1,543,128.77/2,129,534.73 = 854,811.17/x - Step 3: Cross multiply
1,543,128.77x = 2,129,534.73 × 854,811.17 - Step 4: Simplify right side
1,543,128.77x = 1,820,350,063,459.26 - Step 5: Solve for x
x = 1,820,350,063,459.26/1,543,128.77 - Step 6: Final answer
x = 1,179,648.84
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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.