Finding the Fourth Proportional to 666,790.36, 920,163.56 and 360,860.06
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Solution
The fourth proportional to 666,790.36, 920,163.56 and 360,860.06 is: 497,983.02
Step by Step Solution
- Step 1: Write the proportion equation
666,790.36 : 920,163.56 = 360,860.06 : x - Step 2: Convert to fraction form
666,790.36/920,163.56 = 360,860.06/x - Step 3: Cross multiply
666,790.36x = 920,163.56 × 360,860.06 - Step 4: Simplify right side
666,790.36x = 332,050,277,471.41 - Step 5: Solve for x
x = 332,050,277,471.41/666,790.36 - Step 6: Final answer
x = 497,983.02
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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.