Finding the Fourth Proportional to 782,715.38, 1,174,213.20 and 403,534.31
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Solution
The fourth proportional to 782,715.38, 1,174,213.20 and 403,534.31 is: 605,373.70
Step by Step Solution
- Step 1: Write the proportion equation
782,715.38 : 1,174,213.20 = 403,534.31 : x - Step 2: Convert to fraction form
782,715.38/1,174,213.20 = 403,534.31/x - Step 3: Cross multiply
782,715.38x = 1,174,213.20 × 403,534.31 - Step 4: Simplify right side
782,715.38x = 473,835,307,536.53 - Step 5: Solve for x
x = 473,835,307,536.53/782,715.38 - Step 6: Final answer
x = 605,373.70
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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.