Finding the Fourth Proportional to 1,353,631.40, 2,029,863.90 and 679,452.20
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Solution
The fourth proportional to 1,353,631.40, 2,029,863.90 and 679,452.20 is: 1,018,885.56
Step by Step Solution
- Step 1: Write the proportion equation
1,353,631.40 : 2,029,863.90 = 679,452.20 : x - Step 2: Convert to fraction form
1,353,631.40/2,029,863.90 = 679,452.20/x - Step 3: Cross multiply
1,353,631.40x = 2,029,863.90 × 679,452.20 - Step 4: Simplify right side
1,353,631.40x = 1,379,195,492,555.58 - Step 5: Solve for x
x = 1,379,195,492,555.58/1,353,631.40 - Step 6: Final answer
x = 1,018,885.56
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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.