Finding the Fourth Proportional to 861,973.92, 1,189,524 and 499,607.97
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Solution
The fourth proportional to 861,973.92, 1,189,524 and 499,607.97 is: 689,458.99
Step by Step Solution
- Step 1: Write the proportion equation
861,973.92 : 1,189,524 = 499,607.97 : x - Step 2: Convert to fraction form
861,973.92/1,189,524 = 499,607.97/x - Step 3: Cross multiply
861,973.92x = 1,189,524 × 499,607.97 - Step 4: Simplify right side
861,973.92x = 594,295,670,906.28 - Step 5: Solve for x
x = 594,295,670,906.28/861,973.92 - Step 6: Final answer
x = 689,458.99
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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.