Finding the Fourth Proportional to 513,469.09, 708,532.84 and 283,989.90
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Solution
The fourth proportional to 513,469.09, 708,532.84 and 283,989.90 is: 391,875.92
Step by Step Solution
- Step 1: Write the proportion equation
513,469.09 : 708,532.84 = 283,989.90 : x - Step 2: Convert to fraction form
513,469.09/708,532.84 = 283,989.90/x - Step 3: Cross multiply
513,469.09x = 708,532.84 × 283,989.90 - Step 4: Simplify right side
513,469.09x = 201,216,170,378.32 - Step 5: Solve for x
x = 201,216,170,378.32/513,469.09 - Step 6: Final answer
x = 391,875.92
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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.