Finding the Fourth Proportional to 724,452.08, 1,000,078.26 and 434,202.08
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Solution
The fourth proportional to 724,452.08, 1,000,078.26 and 434,202.08 is: 599,399.29
Step by Step Solution
- Step 1: Write the proportion equation
724,452.08 : 1,000,078.26 = 434,202.08 : x - Step 2: Convert to fraction form
724,452.08/1,000,078.26 = 434,202.08/x - Step 3: Cross multiply
724,452.08x = 1,000,078.26 × 434,202.08 - Step 4: Simplify right side
724,452.08x = 434,236,060,654.78 - Step 5: Solve for x
x = 434,236,060,654.78/724,452.08 - Step 6: Final answer
x = 599,399.29
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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.