Finding the Fourth Proportional to 549,437.99, 825,420.17 and 387,704.21
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Solution
The fourth proportional to 549,437.99, 825,420.17 and 387,704.21 is: 582,447.67
Step by Step Solution
- Step 1: Write the proportion equation
549,437.99 : 825,420.17 = 387,704.21 : x - Step 2: Convert to fraction form
549,437.99/825,420.17 = 387,704.21/x - Step 3: Cross multiply
549,437.99x = 825,420.17 × 387,704.21 - Step 4: Simplify right side
549,437.99x = 320,018,871,770.08 - Step 5: Solve for x
x = 320,018,871,770.08/549,437.99 - Step 6: Final answer
x = 582,447.67
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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.