Finding the Fourth Proportional to 492,372.20, 679,470.18 and 291,163.88
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Solution
The fourth proportional to 492,372.20, 679,470.18 and 291,163.88 is: 401,804.11
Step by Step Solution
- Step 1: Write the proportion equation
492,372.20 : 679,470.18 = 291,163.88 : x - Step 2: Convert to fraction form
492,372.20/679,470.18 = 291,163.88/x - Step 3: Cross multiply
492,372.20x = 679,470.18 × 291,163.88 - Step 4: Simplify right side
492,372.20x = 197,837,173,953.10 - Step 5: Solve for x
x = 197,837,173,953.10/492,372.20 - Step 6: Final answer
x = 401,804.11
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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.