Finding the Fourth Proportional to 1,324,897.20, 1,987,345.80 and 1,236,323.70
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Solution
The fourth proportional to 1,324,897.20, 1,987,345.80 and 1,236,323.70 is: 1,854,485.55
Step by Step Solution
- Step 1: Write the proportion equation
1,324,897.20 : 1,987,345.80 = 1,236,323.70 : x - Step 2: Convert to fraction form
1,324,897.20/1,987,345.80 = 1,236,323.70/x - Step 3: Cross multiply
1,324,897.20x = 1,987,345.80 × 1,236,323.70 - Step 4: Simplify right side
1,324,897.20x = 2,457,002,712,635.46 - Step 5: Solve for x
x = 2,457,002,712,635.46/1,324,897.20 - Step 6: Final answer
x = 1,854,485.55
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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.