Finding the Fourth Proportional to 2,776,647.40, 4,162,206.30 and 1,278,125.80
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Solution
The fourth proportional to 2,776,647.40, 4,162,206.30 and 1,278,125.80 is: 1,915,916.03
Step by Step Solution
- Step 1: Write the proportion equation
2,776,647.40 : 4,162,206.30 = 1,278,125.80 : x - Step 2: Convert to fraction form
2,776,647.40/4,162,206.30 = 1,278,125.80/x - Step 3: Cross multiply
2,776,647.40x = 4,162,206.30 × 1,278,125.80 - Step 4: Simplify right side
2,776,647.40x = 5,319,823,256,952.54 - Step 5: Solve for x
x = 5,319,823,256,952.54/2,776,647.40 - Step 6: Final answer
x = 1,915,916.03
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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.