Finding the Fourth Proportional to 1,543,223.68, 2,129,648.30 and 854,940.23
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Solution
The fourth proportional to 1,543,223.68, 2,129,648.30 and 854,940.23 is: 1,179,817.31
Step by Step Solution
- Step 1: Write the proportion equation
1,543,223.68 : 2,129,648.30 = 854,940.23 : x - Step 2: Convert to fraction form
1,543,223.68/2,129,648.30 = 854,940.23/x - Step 3: Cross multiply
1,543,223.68x = 2,129,648.30 × 854,940.23 - Step 4: Simplify right side
1,543,223.68x = 1,820,722,002,509.78 - Step 5: Solve for x
x = 1,820,722,002,509.78/1,543,223.68 - Step 6: Final answer
x = 1,179,817.31
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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.