Finding the Fourth Proportional to 775,884.24, 1,070,867.28 and 485,630.48
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Solution
The fourth proportional to 775,884.24, 1,070,867.28 and 485,630.48 is: 670,262.09
Step by Step Solution
- Step 1: Write the proportion equation
775,884.24 : 1,070,867.28 = 485,630.48 : x - Step 2: Convert to fraction form
775,884.24/1,070,867.28 = 485,630.48/x - Step 3: Cross multiply
775,884.24x = 1,070,867.28 × 485,630.48 - Step 4: Simplify right side
775,884.24x = 520,045,791,202.69 - Step 5: Solve for x
x = 520,045,791,202.69/775,884.24 - Step 6: Final answer
x = 670,262.09
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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.