Finding the Fourth Proportional to 409,137.68, 565,342.26 and 318,727.10
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Solution
The fourth proportional to 409,137.68, 565,342.26 and 318,727.10 is: 440,413.85
Step by Step Solution
- Step 1: Write the proportion equation
409,137.68 : 565,342.26 = 318,727.10 : x - Step 2: Convert to fraction form
409,137.68/565,342.26 = 318,727.10/x - Step 3: Cross multiply
409,137.68x = 565,342.26 × 318,727.10 - Step 4: Simplify right side
409,137.68x = 180,189,899,037.25 - Step 5: Solve for x
x = 180,189,899,037.25/409,137.68 - Step 6: Final answer
x = 440,413.85
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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.