Finding the Fourth Proportional to 1,543,650.42, 2,315,699.82 and 478,778.28
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Solution
The fourth proportional to 1,543,650.42, 2,315,699.82 and 478,778.28 is: 718,236.95
Step by Step Solution
- Step 1: Write the proportion equation
1,543,650.42 : 2,315,699.82 = 478,778.28 : x - Step 2: Convert to fraction form
1,543,650.42/2,315,699.82 = 478,778.28/x - Step 3: Cross multiply
1,543,650.42x = 2,315,699.82 × 478,778.28 - Step 4: Simplify right side
1,543,650.42x = 1,108,706,776,815.91 - Step 5: Solve for x
x = 1,108,706,776,815.91/1,543,650.42 - Step 6: Final answer
x = 718,236.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.