Finding the Fourth Proportional to 1,603,903.20, 2,408,187.60 and 1,207,327.20
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Solution
The fourth proportional to 1,603,903.20, 2,408,187.60 and 1,207,327.20 is: 1,812,746.80
Step by Step Solution
- Step 1: Write the proportion equation
1,603,903.20 : 2,408,187.60 = 1,207,327.20 : x - Step 2: Convert to fraction form
1,603,903.20/2,408,187.60 = 1,207,327.20/x - Step 3: Cross multiply
1,603,903.20x = 2,408,187.60 × 1,207,327.20 - Step 4: Simplify right side
1,603,903.20x = 2,907,470,392,182.72 - Step 5: Solve for x
x = 2,907,470,392,182.72/1,603,903.20 - Step 6: Final answer
x = 1,812,746.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.