Finding the Fourth Proportional to 985,121.18, 1,359,491.30 and 549,535.42
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Solution
The fourth proportional to 985,121.18, 1,359,491.30 and 549,535.42 is: 758,372.31
Step by Step Solution
- Step 1: Write the proportion equation
985,121.18 : 1,359,491.30 = 549,535.42 : x - Step 2: Convert to fraction form
985,121.18/1,359,491.30 = 549,535.42/x - Step 3: Cross multiply
985,121.18x = 1,359,491.30 × 549,535.42 - Step 4: Simplify right side
985,121.18x = 747,088,622,531.85 - Step 5: Solve for x
x = 747,088,622,531.85/985,121.18 - Step 6: Final answer
x = 758,372.31
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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.