Finding the Fourth Proportional to 772,213.64, 1,158,481.74 and 239,720.84
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Solution
The fourth proportional to 772,213.64, 1,158,481.74 and 239,720.84 is: 359,631.33
Step by Step Solution
- Step 1: Write the proportion equation
772,213.64 : 1,158,481.74 = 239,720.84 : x - Step 2: Convert to fraction form
772,213.64/1,158,481.74 = 239,720.84/x - Step 3: Cross multiply
772,213.64x = 1,158,481.74 × 239,720.84 - Step 4: Simplify right side
772,213.64x = 277,712,215,837.46 - Step 5: Solve for x
x = 277,712,215,837.46/772,213.64 - Step 6: Final answer
x = 359,631.33
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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.