Finding the Fourth Proportional to 549,431.99, 825,411.14 and 387,698.18
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Solution
The fourth proportional to 549,431.99, 825,411.14 and 387,698.18 is: 582,438.59
Step by Step Solution
- Step 1: Write the proportion equation
549,431.99 : 825,411.14 = 387,698.18 : x - Step 2: Convert to fraction form
549,431.99/825,411.14 = 387,698.18/x - Step 3: Cross multiply
549,431.99x = 825,411.14 × 387,698.18 - Step 4: Simplify right side
549,431.99x = 320,010,390,664.18 - Step 5: Solve for x
x = 320,010,390,664.18/549,431.99 - Step 6: Final answer
x = 582,438.59
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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.