Finding the Fourth Proportional to 1,758,863.40, 2,630,000.70 and 1,310,965.80
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Solution
The fourth proportional to 1,758,863.40, 2,630,000.70 and 1,310,965.80 is: 1,960,266.48
Step by Step Solution
- Step 1: Write the proportion equation
1,758,863.40 : 2,630,000.70 = 1,310,965.80 : x - Step 2: Convert to fraction form
1,758,863.40/2,630,000.70 = 1,310,965.80/x - Step 3: Cross multiply
1,758,863.40x = 2,630,000.70 × 1,310,965.80 - Step 4: Simplify right side
1,758,863.40x = 3,447,840,971,676.06 - Step 5: Solve for x
x = 3,447,840,971,676.06/1,758,863.40 - Step 6: Final answer
x = 1,960,266.48
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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.