Finding the Fourth Proportional to 416,000.56, 622,776.12 and 257,720.08
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Solution
The fourth proportional to 416,000.56, 622,776.12 and 257,720.08 is: 385,821.38
Step by Step Solution
- Step 1: Write the proportion equation
416,000.56 : 622,776.12 = 257,720.08 : x - Step 2: Convert to fraction form
416,000.56/622,776.12 = 257,720.08/x - Step 3: Cross multiply
416,000.56x = 622,776.12 × 257,720.08 - Step 4: Simplify right side
416,000.56x = 160,501,911,468.49 - Step 5: Solve for x
x = 160,501,911,468.49/416,000.56 - Step 6: Final answer
x = 385,821.38
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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.