Finding the Fourth Proportional to 916,003.49, 1,264,236.12 and 508,236.53
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Solution
The fourth proportional to 916,003.49, 1,264,236.12 and 508,236.53 is: 701,450.36
Step by Step Solution
- Step 1: Write the proportion equation
916,003.49 : 1,264,236.12 = 508,236.53 : x - Step 2: Convert to fraction form
916,003.49/1,264,236.12 = 508,236.53/x - Step 3: Cross multiply
916,003.49x = 1,264,236.12 × 508,236.53 - Step 4: Simplify right side
916,003.49x = 642,530,972,408.28 - Step 5: Solve for x
x = 642,530,972,408.28/916,003.49 - Step 6: Final answer
x = 701,450.36
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1.5x scale
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.