Finding the Fourth Proportional to 612,760.68, 845,377.56 and 380,079.81
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Solution
The fourth proportional to 612,760.68, 845,377.56 and 380,079.81 is: 524,366.12
Step by Step Solution
- Step 1: Write the proportion equation
612,760.68 : 845,377.56 = 380,079.81 : x - Step 2: Convert to fraction form
612,760.68/845,377.56 = 380,079.81/x - Step 3: Cross multiply
612,760.68x = 845,377.56 × 380,079.81 - Step 4: Simplify right side
612,760.68x = 321,310,942,383.06 - Step 5: Solve for x
x = 321,310,942,383.06/612,760.68 - Step 6: Final answer
x = 524,366.12
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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.