Finding the Fourth Proportional to 861,665.24, 1,189,059.68 and 493,878.74
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Solution
The fourth proportional to 861,665.24, 1,189,059.68 and 493,878.74 is: 681,530.67
Step by Step Solution
- Step 1: Write the proportion equation
861,665.24 : 1,189,059.68 = 493,878.74 : x - Step 2: Convert to fraction form
861,665.24/1,189,059.68 = 493,878.74/x - Step 3: Cross multiply
861,665.24x = 1,189,059.68 × 493,878.74 - Step 4: Simplify right side
861,665.24x = 587,251,288,128.51 - Step 5: Solve for x
x = 587,251,288,128.51/861,665.24 - Step 6: Final answer
x = 681,530.67
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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.