Finding the Fourth Proportional to 654,479.21, 902,812.28 and 392,767.58
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Solution
The fourth proportional to 654,479.21, 902,812.28 and 392,767.58 is: 541,797.80
Step by Step Solution
- Step 1: Write the proportion equation
654,479.21 : 902,812.28 = 392,767.58 : x - Step 2: Convert to fraction form
654,479.21/902,812.28 = 392,767.58/x - Step 3: Cross multiply
654,479.21x = 902,812.28 × 392,767.58 - Step 4: Simplify right side
654,479.21x = 354,595,394,703.08 - Step 5: Solve for x
x = 354,595,394,703.08/654,479.21 - Step 6: Final answer
x = 541,797.80
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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.