Finding the Fourth Proportional to 610,431.70, 915,428.85 and 310,812.70
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Solution
The fourth proportional to 610,431.70, 915,428.85 and 310,812.70 is: 466,107.69
Step by Step Solution
- Step 1: Write the proportion equation
610,431.70 : 915,428.85 = 310,812.70 : x - Step 2: Convert to fraction form
610,431.70/915,428.85 = 310,812.70/x - Step 3: Cross multiply
610,431.70x = 915,428.85 × 310,812.70 - Step 4: Simplify right side
610,431.70x = 284,526,912,526.40 - Step 5: Solve for x
x = 284,526,912,526.40/610,431.70 - Step 6: Final answer
x = 466,107.69
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1.5x scale
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.