Finding the Fourth Proportional to 656,331.48, 905,937.68 and 380,758.95
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Solution
The fourth proportional to 656,331.48, 905,937.68 and 380,758.95 is: 525,563.52
Step by Step Solution
- Step 1: Write the proportion equation
656,331.48 : 905,937.68 = 380,758.95 : x - Step 2: Convert to fraction form
656,331.48/905,937.68 = 380,758.95/x - Step 3: Cross multiply
656,331.48x = 905,937.68 × 380,758.95 - Step 4: Simplify right side
656,331.48x = 344,943,880,754.13 - Step 5: Solve for x
x = 344,943,880,754.13/656,331.48 - Step 6: Final answer
x = 525,563.52
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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.