Finding the Fourth Proportional to 2,780,603.80, 4,170,905.70 and 1,284,695.80
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Solution
The fourth proportional to 2,780,603.80, 4,170,905.70 and 1,284,695.80 is: 1,927,043.70
Step by Step Solution
- Step 1: Write the proportion equation
2,780,603.80 : 4,170,905.70 = 1,284,695.80 : x - Step 2: Convert to fraction form
2,780,603.80/4,170,905.70 = 1,284,695.80/x - Step 3: Cross multiply
2,780,603.80x = 4,170,905.70 × 1,284,695.80 - Step 4: Simplify right side
2,780,603.80x = 5,358,345,034,986.06 - Step 5: Solve for x
x = 5,358,345,034,986.06/2,780,603.80 - Step 6: Final answer
x = 1,927,043.70
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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.