Finding the Fourth Proportional to 394,798.30, 592,064.84 and 128,496.19
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Solution
The fourth proportional to 394,798.30, 592,064.84 and 128,496.19 is: 192,701.12
Step by Step Solution
- Step 1: Write the proportion equation
394,798.30 : 592,064.84 = 128,496.19 : x - Step 2: Convert to fraction form
394,798.30/592,064.84 = 128,496.19/x - Step 3: Cross multiply
394,798.30x = 592,064.84 × 128,496.19 - Step 4: Simplify right side
394,798.30x = 76,078,075,014.04 - Step 5: Solve for x
x = 76,078,075,014.04/394,798.30 - Step 6: Final answer
x = 192,701.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.