Finding the Fourth Proportional to 1,425,650.40, 2,135,494.80 and 668,138.40
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Solution
The fourth proportional to 1,425,650.40, 2,135,494.80 and 668,138.40 is: 1,000,810.63
Step by Step Solution
- Step 1: Write the proportion equation
1,425,650.40 : 2,135,494.80 = 668,138.40 : x - Step 2: Convert to fraction form
1,425,650.40/2,135,494.80 = 668,138.40/x - Step 3: Cross multiply
1,425,650.40x = 2,135,494.80 × 668,138.40 - Step 4: Simplify right side
1,425,650.40x = 1,426,806,078,880.32 - Step 5: Solve for x
x = 1,426,806,078,880.32/1,425,650.40 - Step 6: Final answer
x = 1,000,810.63
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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.