Finding the Fourth Proportional to 1,661,197.20, 2,492,962.20 and 715,246.80
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Solution
The fourth proportional to 1,661,197.20, 2,492,962.20 and 715,246.80 is: 1,073,372.41
Step by Step Solution
- Step 1: Write the proportion equation
1,661,197.20 : 2,492,962.20 = 715,246.80 : x - Step 2: Convert to fraction form
1,661,197.20/2,492,962.20 = 715,246.80/x - Step 3: Cross multiply
1,661,197.20x = 2,492,962.20 × 715,246.80 - Step 4: Simplify right side
1,661,197.20x = 1,783,083,236,070.96 - Step 5: Solve for x
x = 1,783,083,236,070.96/1,661,197.20 - Step 6: Final answer
x = 1,073,372.41
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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.