Finding the Fourth Proportional to 428,266.65, 590,740.36 and 275,503.75
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Solution
The fourth proportional to 428,266.65, 590,740.36 and 275,503.75 is: 380,023.02
Step by Step Solution
- Step 1: Write the proportion equation
428,266.65 : 590,740.36 = 275,503.75 : x - Step 2: Convert to fraction form
428,266.65/590,740.36 = 275,503.75/x - Step 3: Cross multiply
428,266.65x = 590,740.36 × 275,503.75 - Step 4: Simplify right side
428,266.65x = 162,751,184,456.35 - Step 5: Solve for x
x = 162,751,184,456.35/428,266.65 - Step 6: Final answer
x = 380,023.02
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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.