Finding the Fourth Proportional to 2,170,691.56, 2,995,478.92 and 1,203,911.81
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Solution
The fourth proportional to 2,170,691.56, 2,995,478.92 and 1,203,911.81 is: 1,661,356.46
Step by Step Solution
- Step 1: Write the proportion equation
2,170,691.56 : 2,995,478.92 = 1,203,911.81 : x - Step 2: Convert to fraction form
2,170,691.56/2,995,478.92 = 1,203,911.81/x - Step 3: Cross multiply
2,170,691.56x = 2,995,478.92 × 1,203,911.81 - Step 4: Simplify right side
2,170,691.56x = 3,606,292,446,154.59 - Step 5: Solve for x
x = 3,606,292,446,154.59/2,170,691.56 - Step 6: Final answer
x = 1,661,356.46
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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.