Finding the Fourth Proportional to 652,108.80, 978,163.20 and 628,489.20
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Solution
The fourth proportional to 652,108.80, 978,163.20 and 628,489.20 is: 942,733.80
Step by Step Solution
- Step 1: Write the proportion equation
652,108.80 : 978,163.20 = 628,489.20 : x - Step 2: Convert to fraction form
652,108.80/978,163.20 = 628,489.20/x - Step 3: Cross multiply
652,108.80x = 978,163.20 × 628,489.20 - Step 4: Simplify right side
652,108.80x = 614,765,007,037.44 - Step 5: Solve for x
x = 614,765,007,037.44/652,108.80 - Step 6: Final answer
x = 942,733.80
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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.