Finding the Fourth Proportional to 826,812.70, 1,240,219.05 and 406,908.70
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Solution
The fourth proportional to 826,812.70, 1,240,219.05 and 406,908.70 is: 610,363.05
Step by Step Solution
- Step 1: Write the proportion equation
826,812.70 : 1,240,219.05 = 406,908.70 : x - Step 2: Convert to fraction form
826,812.70/1,240,219.05 = 406,908.70/x - Step 3: Cross multiply
826,812.70x = 1,240,219.05 × 406,908.70 - Step 4: Simplify right side
826,812.70x = 504,655,921,350.74 - Step 5: Solve for x
x = 504,655,921,350.74/826,812.70 - Step 6: Final answer
x = 610,363.05
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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.