Finding the Fourth Proportional to 1,806,585.18, 2,486,830.05 and 1,561,458.12
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Solution
The fourth proportional to 1,806,585.18, 2,486,830.05 and 1,561,458.12 is: 2,149,403.76
Step by Step Solution
- Step 1: Write the proportion equation
1,806,585.18 : 2,486,830.05 = 1,561,458.12 : x - Step 2: Convert to fraction form
1,806,585.18/2,486,830.05 = 1,561,458.12/x - Step 3: Cross multiply
1,806,585.18x = 2,486,830.05 × 1,561,458.12 - Step 4: Simplify right side
1,806,585.18x = 3,883,080,974,632.51 - Step 5: Solve for x
x = 3,883,080,974,632.51/1,806,585.18 - Step 6: Final answer
x = 2,149,403.76
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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.