Finding the Fourth Proportional to 641,134.81, 884,688.97 and 369,291.12
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Solution
The fourth proportional to 641,134.81, 884,688.97 and 369,291.12 is: 509,577.35
Step by Step Solution
- Step 1: Write the proportion equation
641,134.81 : 884,688.97 = 369,291.12 : x - Step 2: Convert to fraction form
641,134.81/884,688.97 = 369,291.12/x - Step 3: Cross multiply
641,134.81x = 884,688.97 × 369,291.12 - Step 4: Simplify right side
641,134.81x = 326,707,774,313.05 - Step 5: Solve for x
x = 326,707,774,313.05/641,134.81 - Step 6: Final answer
x = 509,577.35
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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.