Finding the Fourth Proportional to 1,421,650.40, 2,129,365.20 and 859,704.80
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Solution
The fourth proportional to 1,421,650.40, 2,129,365.20 and 859,704.80 is: 1,287,676.27
Step by Step Solution
- Step 1: Write the proportion equation
1,421,650.40 : 2,129,365.20 = 859,704.80 : x - Step 2: Convert to fraction form
1,421,650.40/2,129,365.20 = 859,704.80/x - Step 3: Cross multiply
1,421,650.40x = 2,129,365.20 × 859,704.80 - Step 4: Simplify right side
1,421,650.40x = 1,830,625,483,392.96 - Step 5: Solve for x
x = 1,830,625,483,392.96/1,421,650.40 - Step 6: Final answer
x = 1,287,676.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.