Finding the Fourth Proportional to 479,071.49, 718,398.62 and 137,439.54
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Solution
The fourth proportional to 479,071.49, 718,398.62 and 137,439.54 is: 206,099.46
Step by Step Solution
- Step 1: Write the proportion equation
479,071.49 : 718,398.62 = 137,439.54 : x - Step 2: Convert to fraction form
479,071.49/718,398.62 = 137,439.54/x - Step 3: Cross multiply
479,071.49x = 718,398.62 × 137,439.54 - Step 4: Simplify right side
479,071.49x = 98,736,375,182.24 - Step 5: Solve for x
x = 98,736,375,182.24/479,071.49 - Step 6: Final answer
x = 206,099.46
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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.