Finding the Fourth Proportional to 528,672.08, 729,568.19 and 286,954.70
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Solution
The fourth proportional to 528,672.08, 729,568.19 and 286,954.70 is: 395,997.88
Step by Step Solution
- Step 1: Write the proportion equation
528,672.08 : 729,568.19 = 286,954.70 : x - Step 2: Convert to fraction form
528,672.08/729,568.19 = 286,954.70/x - Step 3: Cross multiply
528,672.08x = 729,568.19 × 286,954.70 - Step 4: Simplify right side
528,672.08x = 209,353,021,090.99 - Step 5: Solve for x
x = 209,353,021,090.99/528,672.08 - Step 6: Final answer
x = 395,997.88
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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.