Finding the Fourth Proportional to 539,553.80, 809,330.70 and 290,721.80
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Solution
The fourth proportional to 539,553.80, 809,330.70 and 290,721.80 is: 436,082.70
Step by Step Solution
- Step 1: Write the proportion equation
539,553.80 : 809,330.70 = 290,721.80 : x - Step 2: Convert to fraction form
539,553.80/809,330.70 = 290,721.80/x - Step 3: Cross multiply
539,553.80x = 809,330.70 × 290,721.80 - Step 4: Simplify right side
539,553.80x = 235,290,077,899.26 - Step 5: Solve for x
x = 235,290,077,899.26/539,553.80 - Step 6: Final answer
x = 436,082.70
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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.