Finding the Fourth Proportional to 1,528,052.80, 2,290,405.20 and 768,683.20
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Solution
The fourth proportional to 1,528,052.80, 2,290,405.20 and 768,683.20 is: 1,152,182.70
Step by Step Solution
- Step 1: Write the proportion equation
1,528,052.80 : 2,290,405.20 = 768,683.20 : x - Step 2: Convert to fraction form
1,528,052.80/2,290,405.20 = 768,683.20/x - Step 3: Cross multiply
1,528,052.80x = 2,290,405.20 × 768,683.20 - Step 4: Simplify right side
1,528,052.80x = 1,760,595,998,432.64 - Step 5: Solve for x
x = 1,760,595,998,432.64/1,528,052.80 - Step 6: Final answer
x = 1,152,182.70
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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.