Finding the Fourth Proportional to 1,768,920.40, 2,651,825.40 and 1,059,230.80
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Solution
The fourth proportional to 1,768,920.40, 2,651,825.40 and 1,059,230.80 is: 1,587,914.95
Step by Step Solution
- Step 1: Write the proportion equation
1,768,920.40 : 2,651,825.40 = 1,059,230.80 : x - Step 2: Convert to fraction form
1,768,920.40/2,651,825.40 = 1,059,230.80/x - Step 3: Cross multiply
1,768,920.40x = 2,651,825.40 × 1,059,230.80 - Step 4: Simplify right side
1,768,920.40x = 2,808,895,139,902.32 - Step 5: Solve for x
x = 2,808,895,139,902.32/1,768,920.40 - Step 6: Final answer
x = 1,587,914.95
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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.