Finding the Fourth Proportional to 528,379.36, 729,163.40 and 302,029.72
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Solution
The fourth proportional to 528,379.36, 729,163.40 and 302,029.72 is: 416,800.95
Step by Step Solution
- Step 1: Write the proportion equation
528,379.36 : 729,163.40 = 302,029.72 : x - Step 2: Convert to fraction form
528,379.36/729,163.40 = 302,029.72/x - Step 3: Cross multiply
528,379.36x = 729,163.40 × 302,029.72 - Step 4: Simplify right side
528,379.36x = 220,229,017,536.25 - Step 5: Solve for x
x = 220,229,017,536.25/528,379.36 - Step 6: Final answer
x = 416,800.95
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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.