Finding the Fourth Proportional to 821,948.24, 1,133,968.20 and 515,846
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Solution
The fourth proportional to 821,948.24, 1,133,968.20 and 515,846 is: 711,666.42
Step by Step Solution
- Step 1: Write the proportion equation
821,948.24 : 1,133,968.20 = 515,846 : x - Step 2: Convert to fraction form
821,948.24/1,133,968.20 = 515,846/x - Step 3: Cross multiply
821,948.24x = 1,133,968.20 × 515,846 - Step 4: Simplify right side
821,948.24x = 584,952,960,097.20 - Step 5: Solve for x
x = 584,952,960,097.20/821,948.24 - Step 6: Final answer
x = 711,666.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.