Finding the Fourth Proportional to 488,683.15, 673,982.90 and 343,967.99
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Solution
The fourth proportional to 488,683.15, 673,982.90 and 343,967.99 is: 474,394.39
Step by Step Solution
- Step 1: Write the proportion equation
488,683.15 : 673,982.90 = 343,967.99 : x - Step 2: Convert to fraction form
488,683.15/673,982.90 = 343,967.99/x - Step 3: Cross multiply
488,683.15x = 673,982.90 × 343,967.99 - Step 4: Simplify right side
488,683.15x = 231,828,541,687.53 - Step 5: Solve for x
x = 231,828,541,687.53/488,683.15 - Step 6: Final answer
x = 474,394.39
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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.