Finding the Fourth Proportional to 561,423.38, 774,783.41 and 306,790.97
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Solution
The fourth proportional to 561,423.38, 774,783.41 and 306,790.97 is: 423,381.99
Step by Step Solution
- Step 1: Write the proportion equation
561,423.38 : 774,783.41 = 306,790.97 : x - Step 2: Convert to fraction form
561,423.38/774,783.41 = 306,790.97/x - Step 3: Cross multiply
561,423.38x = 774,783.41 × 306,790.97 - Step 4: Simplify right side
561,423.38x = 237,696,548,485.94 - Step 5: Solve for x
x = 237,696,548,485.94/561,423.38 - Step 6: Final answer
x = 423,381.99
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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.