Finding the Fourth Proportional to 520,002, 780,003 and 126,018
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Solution
The fourth proportional to 520,002, 780,003 and 126,018 is: 189,027
Step by Step Solution
- Step 1: Write the proportion equation
520,002 : 780,003 = 126,018 : x - Step 2: Convert to fraction form
520,002/780,003 = 126,018/x - Step 3: Cross multiply
520,002x = 780,003 × 126,018 - Step 4: Simplify right side
520,002x = 98,294,418,054 - Step 5: Solve for x
x = 98,294,418,054/520,002 - Step 6: Final answer
x = 189,027
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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.