Finding the Fourth Proportional to 639,457.20, 882,451.08 and 352,977.44
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Solution
The fourth proportional to 639,457.20, 882,451.08 and 352,977.44 is: 487,108.95
Step by Step Solution
- Step 1: Write the proportion equation
639,457.20 : 882,451.08 = 352,977.44 : x - Step 2: Convert to fraction form
639,457.20/882,451.08 = 352,977.44/x - Step 3: Cross multiply
639,457.20x = 882,451.08 × 352,977.44 - Step 4: Simplify right side
639,457.20x = 311,485,323,143.64 - Step 5: Solve for x
x = 311,485,323,143.64/639,457.20 - Step 6: Final answer
x = 487,108.95
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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.