Finding the Fourth Proportional to 2,612,740.80, 3,919,125.04 and 815,473.76
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Solution
The fourth proportional to 2,612,740.80, 3,919,125.04 and 815,473.76 is: 1,223,214.96
Step by Step Solution
- Step 1: Write the proportion equation
2,612,740.80 : 3,919,125.04 = 815,473.76 : x - Step 2: Convert to fraction form
2,612,740.80/3,919,125.04 = 815,473.76/x - Step 3: Cross multiply
2,612,740.80x = 3,919,125.04 × 815,473.76 - Step 4: Simplify right side
2,612,740.80x = 3,195,943,632,278.95 - Step 5: Solve for x
x = 3,195,943,632,278.95/2,612,740.80 - Step 6: Final answer
x = 1,223,214.96
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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.