Finding the Fourth Proportional to 878,890.16, 1,212,861.48 and 496,992.08
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Solution
The fourth proportional to 878,890.16, 1,212,861.48 and 496,992.08 is: 685,845.15
Step by Step Solution
- Step 1: Write the proportion equation
878,890.16 : 1,212,861.48 = 496,992.08 : x - Step 2: Convert to fraction form
878,890.16/1,212,861.48 = 496,992.08/x - Step 3: Cross multiply
878,890.16x = 1,212,861.48 × 496,992.08 - Step 4: Simplify right side
878,890.16x = 602,782,549,697.08 - Step 5: Solve for x
x = 602,782,549,697.08/878,890.16 - Step 6: Final answer
x = 685,845.15
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1.5x scale
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.