Finding the Fourth Proportional to 1,745,728.07, 2,408,743.68 and 1,020,435.49
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Solution
The fourth proportional to 1,745,728.07, 2,408,743.68 and 1,020,435.49 is: 1,407,989.92
Step by Step Solution
- Step 1: Write the proportion equation
1,745,728.07 : 2,408,743.68 = 1,020,435.49 : x - Step 2: Convert to fraction form
1,745,728.07/2,408,743.68 = 1,020,435.49/x - Step 3: Cross multiply
1,745,728.07x = 2,408,743.68 × 1,020,435.49 - Step 4: Simplify right side
1,745,728.07x = 2,457,967,525,341.49 - Step 5: Solve for x
x = 2,457,967,525,341.49/1,745,728.07 - Step 6: Final answer
x = 1,407,989.92
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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.