Finding the Fourth Proportional to 513,745.20, 708,935.69 and 281,124.95
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Solution
The fourth proportional to 513,745.20, 708,935.69 and 281,124.95 is: 387,934.54
Step by Step Solution
- Step 1: Write the proportion equation
513,745.20 : 708,935.69 = 281,124.95 : x - Step 2: Convert to fraction form
513,745.20/708,935.69 = 281,124.95/x - Step 3: Cross multiply
513,745.20x = 708,935.69 × 281,124.95 - Step 4: Simplify right side
513,745.20x = 199,299,507,562.60 - Step 5: Solve for x
x = 199,299,507,562.60/513,745.20 - Step 6: Final answer
x = 387,934.54
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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.