Finding the Fourth Proportional to 478,974.40, 660,989.28 and 264,122.08
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Solution
The fourth proportional to 478,974.40, 660,989.28 and 264,122.08 is: 364,491.01
Step by Step Solution
- Step 1: Write the proportion equation
478,974.40 : 660,989.28 = 264,122.08 : x - Step 2: Convert to fraction form
478,974.40/660,989.28 = 264,122.08/x - Step 3: Cross multiply
478,974.40x = 660,989.28 × 264,122.08 - Step 4: Simplify right side
478,974.40x = 174,581,863,491.30 - Step 5: Solve for x
x = 174,581,863,491.30/478,974.40 - Step 6: Final answer
x = 364,491.01
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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.