Finding the Fourth Proportional to 687,827.28, 949,201.08 and 401,291.88
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Solution
The fourth proportional to 687,827.28, 949,201.08 and 401,291.88 is: 553,782.46
Step by Step Solution
- Step 1: Write the proportion equation
687,827.28 : 949,201.08 = 401,291.88 : x - Step 2: Convert to fraction form
687,827.28/949,201.08 = 401,291.88/x - Step 3: Cross multiply
687,827.28x = 949,201.08 × 401,291.88 - Step 4: Simplify right side
687,827.28x = 380,906,685,891.23 - Step 5: Solve for x
x = 380,906,685,891.23/687,827.28 - Step 6: Final answer
x = 553,782.46
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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.