Finding the Fourth Proportional to 719,156.09, 992,459.22 and 392,486.97
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Solution
The fourth proportional to 719,156.09, 992,459.22 and 392,486.97 is: 541,645.02
Step by Step Solution
- Step 1: Write the proportion equation
719,156.09 : 992,459.22 = 392,486.97 : x - Step 2: Convert to fraction form
719,156.09/992,459.22 = 392,486.97/x - Step 3: Cross multiply
719,156.09x = 992,459.22 × 392,486.97 - Step 4: Simplify right side
719,156.09x = 389,527,312,106.36 - Step 5: Solve for x
x = 389,527,312,106.36/719,156.09 - Step 6: Final answer
x = 541,645.02
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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.