Finding the Fourth Proportional to 753,975.36, 1,040,487.12 and 414,445.68
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Solution
The fourth proportional to 753,975.36, 1,040,487.12 and 414,445.68 is: 571,935.66
Step by Step Solution
- Step 1: Write the proportion equation
753,975.36 : 1,040,487.12 = 414,445.68 : x - Step 2: Convert to fraction form
753,975.36/1,040,487.12 = 414,445.68/x - Step 3: Cross multiply
753,975.36x = 1,040,487.12 × 414,445.68 - Step 4: Simplify right side
753,975.36x = 431,225,391,979.64 - Step 5: Solve for x
x = 431,225,391,979.64/753,975.36 - Step 6: Final answer
x = 571,935.66
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1.5x scale
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.