Finding the Fourth Proportional to 1,543,487.36, 2,129,984.93 and 855,145.41
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Solution
The fourth proportional to 1,543,487.36, 2,129,984.93 and 855,145.41 is: 1,180,085.36
Step by Step Solution
- Step 1: Write the proportion equation
1,543,487.36 : 2,129,984.93 = 855,145.41 : x - Step 2: Convert to fraction form
1,543,487.36/2,129,984.93 = 855,145.41/x - Step 3: Cross multiply
1,543,487.36x = 2,129,984.93 × 855,145.41 - Step 4: Simplify right side
1,543,487.36x = 1,821,446,838,396.54 - Step 5: Solve for x
x = 1,821,446,838,396.54/1,543,487.36 - Step 6: Final answer
x = 1,180,085.36
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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.