Finding the Fourth Proportional to 416,657.81, 574,985.09 and 235,428.41
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Solution
The fourth proportional to 416,657.81, 574,985.09 and 235,428.41 is: 324,889.68
Step by Step Solution
- Step 1: Write the proportion equation
416,657.81 : 574,985.09 = 235,428.41 : x - Step 2: Convert to fraction form
416,657.81/574,985.09 = 235,428.41/x - Step 3: Cross multiply
416,657.81x = 574,985.09 × 235,428.41 - Step 4: Simplify right side
416,657.81x = 135,367,821,460.34 - Step 5: Solve for x
x = 135,367,821,460.34/416,657.81 - Step 6: Final answer
x = 324,889.68
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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.