Finding the Fourth Proportional to 739,745.18, 1,020,790.20 and 453,226.31
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Solution
The fourth proportional to 739,745.18, 1,020,790.20 and 453,226.31 is: 625,416.68
Step by Step Solution
- Step 1: Write the proportion equation
739,745.18 : 1,020,790.20 = 453,226.31 : x - Step 2: Convert to fraction form
739,745.18/1,020,790.20 = 453,226.31/x - Step 3: Cross multiply
739,745.18x = 1,020,790.20 × 453,226.31 - Step 4: Simplify right side
739,745.18x = 462,648,968,260.08 - Step 5: Solve for x
x = 462,648,968,260.08/739,745.18 - Step 6: Final answer
x = 625,416.68
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1.5x scale
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.