Finding the Fourth Proportional to 642,186.74, 963,902.19 and 309,996.02
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Solution
The fourth proportional to 642,186.74, 963,902.19 and 309,996.02 is: 465,294.32
Step by Step Solution
- Step 1: Write the proportion equation
642,186.74 : 963,902.19 = 309,996.02 : x - Step 2: Convert to fraction form
642,186.74/963,902.19 = 309,996.02/x - Step 3: Cross multiply
642,186.74x = 963,902.19 × 309,996.02 - Step 4: Simplify right side
642,186.74x = 298,805,842,569.28 - Step 5: Solve for x
x = 298,805,842,569.28/642,186.74 - Step 6: Final answer
x = 465,294.32
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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.