Finding the Fourth Proportional to 747,745.74, 1,031,850.09 and 408,148.38
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Solution
The fourth proportional to 747,745.74, 1,031,850.09 and 408,148.38 is: 563,223.46
Step by Step Solution
- Step 1: Write the proportion equation
747,745.74 : 1,031,850.09 = 408,148.38 : x - Step 2: Convert to fraction form
747,745.74/1,031,850.09 = 408,148.38/x - Step 3: Cross multiply
747,745.74x = 1,031,850.09 × 408,148.38 - Step 4: Simplify right side
747,745.74x = 421,147,942,636.35 - Step 5: Solve for x
x = 421,147,942,636.35/747,745.74 - Step 6: Final answer
x = 563,223.46
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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.