Finding the Fourth Proportional to 631,707.12, 948,216.96 and 365,986.80
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Solution
The fourth proportional to 631,707.12, 948,216.96 and 365,986.80 is: 549,360.42
Step by Step Solution
- Step 1: Write the proportion equation
631,707.12 : 948,216.96 = 365,986.80 : x - Step 2: Convert to fraction form
631,707.12/948,216.96 = 365,986.80/x - Step 3: Cross multiply
631,707.12x = 948,216.96 × 365,986.80 - Step 4: Simplify right side
631,707.12x = 347,034,890,896.13 - Step 5: Solve for x
x = 347,034,890,896.13/631,707.12 - Step 6: Final answer
x = 549,360.42
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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.