Finding the Fourth Proportional to 528,682.92, 729,583.08 and 286,965.48
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Solution
The fourth proportional to 528,682.92, 729,583.08 and 286,965.48 is: 396,012.72
Step by Step Solution
- Step 1: Write the proportion equation
528,682.92 : 729,583.08 = 286,965.48 : x - Step 2: Convert to fraction form
528,682.92/729,583.08 = 286,965.48/x - Step 3: Cross multiply
528,682.92x = 729,583.08 × 286,965.48 - Step 4: Simplify right side
528,682.92x = 209,365,158,752.08 - Step 5: Solve for x
x = 209,365,158,752.08/528,682.92 - Step 6: Final answer
x = 396,012.72
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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.