Finding the Fourth Proportional to 747,467.28, 1,031,146.09 and 489,230.53
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Solution
The fourth proportional to 747,467.28, 1,031,146.09 and 489,230.53 is: 674,903.32
Step by Step Solution
- Step 1: Write the proportion equation
747,467.28 : 1,031,146.09 = 489,230.53 : x - Step 2: Convert to fraction form
747,467.28/1,031,146.09 = 489,230.53/x - Step 3: Cross multiply
747,467.28x = 1,031,146.09 × 489,230.53 - Step 4: Simplify right side
747,467.28x = 504,468,149,429.43 - Step 5: Solve for x
x = 504,468,149,429.43/747,467.28 - Step 6: Final answer
x = 674,903.32
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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.