Finding the Fourth Proportional to 2,177,387.21, 3,004,806.02 and 1,197,389.42
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Solution
The fourth proportional to 2,177,387.21, 3,004,806.02 and 1,197,389.42 is: 1,652,403.82
Step by Step Solution
- Step 1: Write the proportion equation
2,177,387.21 : 3,004,806.02 = 1,197,389.42 : x - Step 2: Convert to fraction form
2,177,387.21/3,004,806.02 = 1,197,389.42/x - Step 3: Cross multiply
2,177,387.21x = 3,004,806.02 × 1,197,389.42 - Step 4: Simplify right side
2,177,387.21x = 3,597,922,937,500.31 - Step 5: Solve for x
x = 3,597,922,937,500.31/2,177,387.21 - Step 6: Final answer
x = 1,652,403.82
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1.5x scale
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.