Finding the Fourth Proportional to 426,247.84, 639,371.58 and 126,727.12
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Solution
The fourth proportional to 426,247.84, 639,371.58 and 126,727.12 is: 190,090.63
Step by Step Solution
- Step 1: Write the proportion equation
426,247.84 : 639,371.58 = 126,727.12 : x - Step 2: Convert to fraction form
426,247.84/639,371.58 = 126,727.12/x - Step 3: Cross multiply
426,247.84x = 639,371.58 × 126,727.12 - Step 4: Simplify right side
426,247.84x = 81,025,718,943.25 - Step 5: Solve for x
x = 81,025,718,943.25/426,247.84 - Step 6: Final answer
x = 190,090.63
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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.