Finding the Fourth Proportional to 743,528.64, 1,115,291.70 and 211,054.80
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Solution
The fourth proportional to 743,528.64, 1,115,291.70 and 211,054.80 is: 316,581.84
Step by Step Solution
- Step 1: Write the proportion equation
743,528.64 : 1,115,291.70 = 211,054.80 : x - Step 2: Convert to fraction form
743,528.64/1,115,291.70 = 211,054.80/x - Step 3: Cross multiply
743,528.64x = 1,115,291.70 × 211,054.80 - Step 4: Simplify right side
743,528.64x = 235,387,666,685.16 - Step 5: Solve for x
x = 235,387,666,685.16/743,528.64 - Step 6: Final answer
x = 316,581.84
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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.