Finding the Fourth Proportional to 1,129,615.40, 1,694,412.30 and 276,690.80
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Solution
The fourth proportional to 1,129,615.40, 1,694,412.30 and 276,690.80 is: 415,033.55
Step by Step Solution
- Step 1: Write the proportion equation
1,129,615.40 : 1,694,412.30 = 276,690.80 : x - Step 2: Convert to fraction form
1,129,615.40/1,694,412.30 = 276,690.80/x - Step 3: Cross multiply
1,129,615.40x = 1,694,412.30 × 276,690.80 - Step 4: Simplify right side
1,129,615.40x = 468,828,294,816.84 - Step 5: Solve for x
x = 468,828,294,816.84/1,129,615.40 - Step 6: Final answer
x = 415,033.55
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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.