Finding the Fourth Proportional to 683,911.99, 1,025,654.75 and 257,507.13
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Solution
The fourth proportional to 683,911.99, 1,025,654.75 and 257,507.13 is: 386,180.41
Step by Step Solution
- Step 1: Write the proportion equation
683,911.99 : 1,025,654.75 = 257,507.13 : x - Step 2: Convert to fraction form
683,911.99/1,025,654.75 = 257,507.13/x - Step 3: Cross multiply
683,911.99x = 1,025,654.75 × 257,507.13 - Step 4: Simplify right side
683,911.99x = 264,113,408,074.14 - Step 5: Solve for x
x = 264,113,408,074.14/683,911.99 - Step 6: Final answer
x = 386,180.41
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1.5x scale
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.