Finding the Fourth Proportional to 731,390.70, 1,094,947.65 and 521,438.70
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Solution
The fourth proportional to 731,390.70, 1,094,947.65 and 521,438.70 is: 780,633.50
Step by Step Solution
- Step 1: Write the proportion equation
731,390.70 : 1,094,947.65 = 521,438.70 : x - Step 2: Convert to fraction form
731,390.70/1,094,947.65 = 521,438.70/x - Step 3: Cross multiply
731,390.70x = 1,094,947.65 × 521,438.70 - Step 4: Simplify right side
731,390.70x = 570,948,079,184.06 - Step 5: Solve for x
x = 570,948,079,184.06/731,390.70 - Step 6: Final answer
x = 780,633.50
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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.