Finding the Fourth Proportional to 493,768.72, 681,400.20 and 267,415.12
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Solution
The fourth proportional to 493,768.72, 681,400.20 and 267,415.12 is: 369,032.52
Step by Step Solution
- Step 1: Write the proportion equation
493,768.72 : 681,400.20 = 267,415.12 : x - Step 2: Convert to fraction form
493,768.72/681,400.20 = 267,415.12/x - Step 3: Cross multiply
493,768.72x = 681,400.20 × 267,415.12 - Step 4: Simplify right side
493,768.72x = 182,216,716,251.02 - Step 5: Solve for x
x = 182,216,716,251.02/493,768.72 - Step 6: Final answer
x = 369,032.52
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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.