Finding the Fourth Proportional to 720,231.47, 1,079,278.09 and 293,244.92
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Solution
The fourth proportional to 720,231.47, 1,079,278.09 and 293,244.92 is: 439,432.09
Step by Step Solution
- Step 1: Write the proportion equation
720,231.47 : 1,079,278.09 = 293,244.92 : x - Step 2: Convert to fraction form
720,231.47/1,079,278.09 = 293,244.92/x - Step 3: Cross multiply
720,231.47x = 1,079,278.09 × 293,244.92 - Step 4: Simplify right side
720,231.47x = 316,492,818,141.72 - Step 5: Solve for x
x = 316,492,818,141.72/720,231.47 - Step 6: Final answer
x = 439,432.09
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1.5x scale
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.