Finding the Fourth Proportional to 578,340.40, 866,819.40 and 297,713.20
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Solution
The fourth proportional to 578,340.40, 866,819.40 and 297,713.20 is: 446,213.99
Step by Step Solution
- Step 1: Write the proportion equation
578,340.40 : 866,819.40 = 297,713.20 : x - Step 2: Convert to fraction form
578,340.40/866,819.40 = 297,713.20/x - Step 3: Cross multiply
578,340.40x = 866,819.40 × 297,713.20 - Step 4: Simplify right side
578,340.40x = 258,063,577,396.08 - Step 5: Solve for x
x = 258,063,577,396.08/578,340.40 - Step 6: Final answer
x = 446,213.99
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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.