Finding the Fourth Proportional to 2,127,840.80, 3,194,713.65 and 1,330,679.30
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Solution
The fourth proportional to 2,127,840.80, 3,194,713.65 and 1,330,679.30 is: 1,997,865.31
Step by Step Solution
- Step 1: Write the proportion equation
2,127,840.80 : 3,194,713.65 = 1,330,679.30 : x - Step 2: Convert to fraction form
2,127,840.80/3,194,713.65 = 1,330,679.30/x - Step 3: Cross multiply
2,127,840.80x = 3,194,713.65 × 1,330,679.30 - Step 4: Simplify right side
2,127,840.80x = 4,251,139,323,482.45 - Step 5: Solve for x
x = 4,251,139,323,482.45/2,127,840.80 - Step 6: Final answer
x = 1,997,865.31
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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.