Finding the Fourth Proportional to 418,427.45, 627,635.70 and 102,887.09
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Solution
The fourth proportional to 418,427.45, 627,635.70 and 102,887.09 is: 154,329.28
Step by Step Solution
- Step 1: Write the proportion equation
418,427.45 : 627,635.70 = 102,887.09 : x - Step 2: Convert to fraction form
418,427.45/627,635.70 = 102,887.09/x - Step 3: Cross multiply
418,427.45x = 627,635.70 × 102,887.09 - Step 4: Simplify right side
418,427.45x = 64,575,607,614.93 - Step 5: Solve for x
x = 64,575,607,614.93/418,427.45 - Step 6: Final answer
x = 154,329.28
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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.