Finding the Fourth Proportional to 442,511.81, 610,445.19 and 279,370.49
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Solution
The fourth proportional to 442,511.81, 610,445.19 and 279,370.49 is: 385,391.68
Step by Step Solution
- Step 1: Write the proportion equation
442,511.81 : 610,445.19 = 279,370.49 : x - Step 2: Convert to fraction form
442,511.81/610,445.19 = 279,370.49/x - Step 3: Cross multiply
442,511.81x = 610,445.19 × 279,370.49 - Step 4: Simplify right side
442,511.81x = 170,540,371,848.44 - Step 5: Solve for x
x = 170,540,371,848.44/442,511.81 - Step 6: Final answer
x = 385,391.68
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1.5x scale
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.