Finding the Fourth Proportional to 753,622.76, 1,039,939.08 and 431,258.96
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Solution
The fourth proportional to 753,622.76, 1,039,939.08 and 431,258.96 is: 595,102.84
Step by Step Solution
- Step 1: Write the proportion equation
753,622.76 : 1,039,939.08 = 431,258.96 : x - Step 2: Convert to fraction form
753,622.76/1,039,939.08 = 431,258.96/x - Step 3: Cross multiply
753,622.76x = 1,039,939.08 × 431,258.96 - Step 4: Simplify right side
753,622.76x = 448,483,046,104.16 - Step 5: Solve for x
x = 448,483,046,104.16/753,622.76 - Step 6: Final answer
x = 595,102.84
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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.