Finding the Fourth Proportional to 1,556,415.95, 2,147,846.87 and 858,677.79
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Solution
The fourth proportional to 1,556,415.95, 2,147,846.87 and 858,677.79 is: 1,184,971.41
Step by Step Solution
- Step 1: Write the proportion equation
1,556,415.95 : 2,147,846.87 = 858,677.79 : x - Step 2: Convert to fraction form
1,556,415.95/2,147,846.87 = 858,677.79/x - Step 3: Cross multiply
1,556,415.95x = 2,147,846.87 × 858,677.79 - Step 4: Simplify right side
1,556,415.95x = 1,844,308,405,736.71 - Step 5: Solve for x
x = 1,844,308,405,736.71/1,556,415.95 - Step 6: Final answer
x = 1,184,971.41
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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.