Finding the Fourth Proportional to 1,743,164.32, 2,405,669.52 and 1,312,684.96
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Solution
The fourth proportional to 1,743,164.32, 2,405,669.52 and 1,312,684.96 is: 1,811,582.63
Step by Step Solution
- Step 1: Write the proportion equation
1,743,164.32 : 2,405,669.52 = 1,312,684.96 : x - Step 2: Convert to fraction form
1,743,164.32/2,405,669.52 = 1,312,684.96/x - Step 3: Cross multiply
1,743,164.32x = 2,405,669.52 × 1,312,684.96 - Step 4: Simplify right side
1,743,164.32x = 3,157,886,197,634.42 - Step 5: Solve for x
x = 3,157,886,197,634.42/1,743,164.32 - Step 6: Final answer
x = 1,811,582.63
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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.