Finding the Fourth Proportional to 1,750,207.80, 2,625,311.70 and 420,511.80
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Solution
The fourth proportional to 1,750,207.80, 2,625,311.70 and 420,511.80 is: 630,767.70
Step by Step Solution
- Step 1: Write the proportion equation
1,750,207.80 : 2,625,311.70 = 420,511.80 : x - Step 2: Convert to fraction form
1,750,207.80/2,625,311.70 = 420,511.80/x - Step 3: Cross multiply
1,750,207.80x = 2,625,311.70 × 420,511.80 - Step 4: Simplify right side
1,750,207.80x = 1,103,974,548,528.06 - Step 5: Solve for x
x = 1,103,974,548,528.06/1,750,207.80 - Step 6: Final answer
x = 630,767.70
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1.5x scale
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.