Finding the Fourth Proportional to 777,021.10, 1,165,697.49 and 440,223.10
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Solution
The fourth proportional to 777,021.10, 1,165,697.49 and 440,223.10 is: 660,428.61
Step by Step Solution
- Step 1: Write the proportion equation
777,021.10 : 1,165,697.49 = 440,223.10 : x - Step 2: Convert to fraction form
777,021.10/1,165,697.49 = 440,223.10/x - Step 3: Cross multiply
777,021.10x = 1,165,697.49 × 440,223.10 - Step 4: Simplify right side
777,021.10x = 513,166,962,710.02 - Step 5: Solve for x
x = 513,166,962,710.02/777,021.10 - Step 6: Final answer
x = 660,428.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.