Finding the Fourth Proportional to 554,479.95, 765,186.92 and 306,129.90
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Solution
The fourth proportional to 554,479.95, 765,186.92 and 306,129.90 is: 422,461.79
Step by Step Solution
- Step 1: Write the proportion equation
554,479.95 : 765,186.92 = 306,129.90 : x - Step 2: Convert to fraction form
554,479.95/765,186.92 = 306,129.90/x - Step 3: Cross multiply
554,479.95x = 765,186.92 × 306,129.90 - Step 4: Simplify right side
554,479.95x = 234,246,593,770.26 - Step 5: Solve for x
x = 234,246,593,770.26/554,479.95 - Step 6: Final answer
x = 422,461.79
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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.