Finding the Fourth Proportional to 1,543,489.94, 2,129,631.36 and 890,315.66
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Solution
The fourth proportional to 1,543,489.94, 2,129,631.36 and 890,315.66 is: 1,228,413.68
Step by Step Solution
- Step 1: Write the proportion equation
1,543,489.94 : 2,129,631.36 = 890,315.66 : x - Step 2: Convert to fraction form
1,543,489.94/2,129,631.36 = 890,315.66/x - Step 3: Cross multiply
1,543,489.94x = 2,129,631.36 × 890,315.66 - Step 4: Simplify right side
1,543,489.94x = 1,896,044,149,835.10 - Step 5: Solve for x
x = 1,896,044,149,835.10/1,543,489.94 - Step 6: Final answer
x = 1,228,413.68
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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.