Finding the Fourth Proportional to 641,562.28, 885,278.28 and 369,719.26
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Solution
The fourth proportional to 641,562.28, 885,278.28 and 369,719.26 is: 510,167.82
Step by Step Solution
- Step 1: Write the proportion equation
641,562.28 : 885,278.28 = 369,719.26 : x - Step 2: Convert to fraction form
641,562.28/885,278.28 = 369,719.26/x - Step 3: Cross multiply
641,562.28x = 885,278.28 × 369,719.26 - Step 4: Simplify right side
641,562.28x = 327,304,430,575.67 - Step 5: Solve for x
x = 327,304,430,575.67/641,562.28 - Step 6: Final answer
x = 510,167.82
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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.