Finding the Fourth Proportional to 658,028.44, 987,042.50 and 358,760.72
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Solution
The fourth proportional to 658,028.44, 987,042.50 and 358,760.72 is: 538,140.99
Step by Step Solution
- Step 1: Write the proportion equation
658,028.44 : 987,042.50 = 358,760.72 : x - Step 2: Convert to fraction form
658,028.44/987,042.50 = 358,760.72/x - Step 3: Cross multiply
658,028.44x = 987,042.50 × 358,760.72 - Step 4: Simplify right side
658,028.44x = 354,112,077,970.60 - Step 5: Solve for x
x = 354,112,077,970.60/658,028.44 - Step 6: Final answer
x = 538,140.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.