Finding the Fourth Proportional to 1,750,515.80, 2,625,773.70 and 420,819.80
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Solution
The fourth proportional to 1,750,515.80, 2,625,773.70 and 420,819.80 is: 631,229.70
Step by Step Solution
- Step 1: Write the proportion equation
1,750,515.80 : 2,625,773.70 = 420,819.80 : x - Step 2: Convert to fraction form
1,750,515.80/2,625,773.70 = 420,819.80/x - Step 3: Cross multiply
1,750,515.80x = 2,625,773.70 × 420,819.80 - Step 4: Simplify right side
1,750,515.80x = 1,104,977,563,279.26 - Step 5: Solve for x
x = 1,104,977,563,279.26/1,750,515.80 - Step 6: Final answer
x = 631,229.70
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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.