Finding the Fourth Proportional to 757,135.52, 1,136,403.12 and 383,420.96
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Solution
The fourth proportional to 757,135.52, 1,136,403.12 and 383,420.96 is: 575,485.85
Step by Step Solution
- Step 1: Write the proportion equation
757,135.52 : 1,136,403.12 = 383,420.96 : x - Step 2: Convert to fraction form
757,135.52/1,136,403.12 = 383,420.96/x - Step 3: Cross multiply
757,135.52x = 1,136,403.12 × 383,420.96 - Step 4: Simplify right side
757,135.52x = 435,720,775,217.40 - Step 5: Solve for x
x = 435,720,775,217.40/757,135.52 - Step 6: Final answer
x = 575,485.85
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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.