Finding the Fourth Proportional to 2,649,408.70, 3,656,661.14 and 1,561,616.77
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Solution
The fourth proportional to 2,649,408.70, 3,656,661.14 and 1,561,616.77 is: 2,155,312.38
Step by Step Solution
- Step 1: Write the proportion equation
2,649,408.70 : 3,656,661.14 = 1,561,616.77 : x - Step 2: Convert to fraction form
2,649,408.70/3,656,661.14 = 1,561,616.77/x - Step 3: Cross multiply
2,649,408.70x = 3,656,661.14 × 1,561,616.77 - Step 4: Simplify right side
2,649,408.70x = 5,710,303,358,431.32 - Step 5: Solve for x
x = 5,710,303,358,431.32/2,649,408.70 - Step 6: Final answer
x = 2,155,312.38
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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.