Finding the Fourth Proportional to 747,734.94, 1,031,868.96 and 408,203.19
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Solution
The fourth proportional to 747,734.94, 1,031,868.96 and 408,203.19 is: 563,317.53
Step by Step Solution
- Step 1: Write the proportion equation
747,734.94 : 1,031,868.96 = 408,203.19 : x - Step 2: Convert to fraction form
747,734.94/1,031,868.96 = 408,203.19/x - Step 3: Cross multiply
747,734.94x = 1,031,868.96 × 408,203.19 - Step 4: Simplify right side
747,734.94x = 421,212,198,997.23 - Step 5: Solve for x
x = 421,212,198,997.23/747,734.94 - Step 6: Final answer
x = 563,317.53
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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.