Finding the Fourth Proportional to 528,611.76, 729,489.48 and 286,896.48
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Solution
The fourth proportional to 528,611.76, 729,489.48 and 286,896.48 is: 395,919.99
Step by Step Solution
- Step 1: Write the proportion equation
528,611.76 : 729,489.48 = 286,896.48 : x - Step 2: Convert to fraction form
528,611.76/729,489.48 = 286,896.48/x - Step 3: Cross multiply
528,611.76x = 729,489.48 × 286,896.48 - Step 4: Simplify right side
528,611.76x = 209,287,964,009.03 - Step 5: Solve for x
x = 209,287,964,009.03/528,611.76 - Step 6: Final answer
x = 395,919.99
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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.