Finding the Fourth Proportional to 2,170,703.10, 2,995,356.87 and 1,203,816.54
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Solution
The fourth proportional to 2,170,703.10, 2,995,356.87 and 1,203,816.54 is: 1,661,148.47
Step by Step Solution
- Step 1: Write the proportion equation
2,170,703.10 : 2,995,356.87 = 1,203,816.54 : x - Step 2: Convert to fraction form
2,170,703.10/2,995,356.87 = 1,203,816.54/x - Step 3: Cross multiply
2,170,703.10x = 2,995,356.87 × 1,203,816.54 - Step 4: Simplify right side
2,170,703.10x = 3,605,860,143,308.63 - Step 5: Solve for x
x = 3,605,860,143,308.63/2,170,703.10 - Step 6: Final answer
x = 1,661,148.47
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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.