Finding the Fourth Proportional to 739,813.44, 1,020,833.06 and 449,273.90
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Solution
The fourth proportional to 739,813.44, 1,020,833.06 and 449,273.90 is: 619,931.49
Step by Step Solution
- Step 1: Write the proportion equation
739,813.44 : 1,020,833.06 = 449,273.90 : x - Step 2: Convert to fraction form
739,813.44/1,020,833.06 = 449,273.90/x - Step 3: Cross multiply
739,813.44x = 1,020,833.06 × 449,273.90 - Step 4: Simplify right side
739,813.44x = 458,633,650,115.13 - Step 5: Solve for x
x = 458,633,650,115.13/739,813.44 - Step 6: Final answer
x = 619,931.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.