Finding the Fourth Proportional to 1,392,206.40, 2,088,309.60 and 972,302.40
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Solution
The fourth proportional to 1,392,206.40, 2,088,309.60 and 972,302.40 is: 1,458,453.60
Step by Step Solution
- Step 1: Write the proportion equation
1,392,206.40 : 2,088,309.60 = 972,302.40 : x - Step 2: Convert to fraction form
1,392,206.40/2,088,309.60 = 972,302.40/x - Step 3: Cross multiply
1,392,206.40x = 2,088,309.60 × 972,302.40 - Step 4: Simplify right side
1,392,206.40x = 2,030,468,436,023.04 - Step 5: Solve for x
x = 2,030,468,436,023.04/1,392,206.40 - Step 6: Final answer
x = 1,458,453.60
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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.