Finding the Fourth Proportional to 747,469.21, 1,031,148.76 and 489,232.47
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Solution
The fourth proportional to 747,469.21, 1,031,148.76 and 489,232.47 is: 674,905.99
Step by Step Solution
- Step 1: Write the proportion equation
747,469.21 : 1,031,148.76 = 489,232.47 : x - Step 2: Convert to fraction form
747,469.21/1,031,148.76 = 489,232.47/x - Step 3: Cross multiply
747,469.21x = 1,031,148.76 × 489,232.47 - Step 4: Simplify right side
747,469.21x = 504,471,452,346.08 - Step 5: Solve for x
x = 504,471,452,346.08/747,469.21 - Step 6: Final answer
x = 674,905.99
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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.